Legal

Effective date: July 10, 2026

Last updated: July 10, 2026

Published at: https://www.lttr.now/legal#terms

Entity: Mautonce LLC

Mail Address: 980 N Michigan Ave Ste 1090 PMB 108751, Chicago, IL 60611, United States

Contact Form: https://www.lttr.now/helpdesk

Email: LTTR@mautonce.com

Section 1: Acceptance of Terms

LTTR ("application", or "app"), is published and operated by Mautonce LLC ("Mautonce", "company," "we," "us," or "our"), a limited liability company organized under the laws of the State of Illinois.

By downloading, installing, using, and/or tapping "Agree & Continue" as required by the app's first-launch screen, you ("User" or "you") acknowledge that you have read and agree to be legally bound by these Terms of Use ("Terms"). These Terms of Use apply to all users of LTTR.

If you do not agree to these Terms, uninstall and discontinue use of the app.

If you are using the app on behalf of an organization, you represent and warrant that you have the authority to bind that organization to these Terms, and that the organization agrees to be bound by them.

These Terms of Use should be read together with our Privacy Policy, available at: https://www.lttr.now/legal#privacy

Section 2: License Grant and Restrictions

2.1 Grant of License

Subject to your compliance with these Terms, Mautonce grants you a limited, non-exclusive, non-transferable, revocable license to download, install, and use LTTR on devices you own or control, solely for your personal and professional creative purposes, including but not limited to writing, scripting, drafting, audio recording, and organizing documents, letters, manuscripts, scripts, podcasts, audiobooks, and similar creative works.

2.2 Restrictions

You may not:

• Copy, modify, distribute, sell, lease, or sublicense LTTR or its source code, except as expressly permitted by applicable open-source licenses incorporated into the app
• Reverse engineer, decompile, disassemble, or attempt to derive the source code of the app, except to the extent such restriction is prohibited by applicable law
• Use the app to violate any applicable local, state, federal, or international law or regulation
• Remove, obscure, or alter any proprietary notices (copyright, trademark, patent, or other intellectual property notices) displayed in or by the app
• Use the app in any manner that could damage, disable, overburden, impair, or interfere with the Company's systems or services, or that interferes with any other party's use and enjoyment of the app
• Attempt to gain unauthorized access to any portion of the app, other users' devices or data, computer systems, or networks connected to the app, whether through hacking, password mining, or any other means
• Use any automated system (including but not limited to robots, scrapers, or data mining tools) to access, monitor, or extract data from the app, except as expressly permitted by Mautonce in writing
• Upload, transmit, or distribute any viruses, malware, trojans, worms, or other malicious code through or in connection with LTTR
• Impersonate any person or entity, or falsely state or misrepresent your affiliation with any person or entity
• Use the App for any commercial purpose not expressly authorized by these Terms, including reselling, renting, or offering access to the App as part of a service bureau or competing product

2.3 No AI Exploitation of App Content

LTTR does not use artificial intelligence, machine learning, or large language models to read, analyze, summarize, generate, or process User Content in any form. Consistent with that architecture, you may not use any external AI tool, automated process, or third-party service in connection with LTTR in a manner that circumvents the app's on-device privacy design or that extracts, transmits, or processes User Content through any server or service not under your own direct control and authorization.

Section 3: User Content and Data

3.1 Ownership

You retain all ownership rights in the letters, manuscripts, scripts, documents, audio recordings, and all other creative works you create using LTTR ("User Content" or "User Content"). Mautonce does not claim any ownership, license, liability, or intellectual property rights over User Content, and nothing in these Terms grants the company any right to use, access, reproduce, distribute, or exploit User Content for any purpose.

3.2 Storage and Access

LTTR stores User Content locally on the user's device or, at the user's direction, in the user's own third-party cloud storage account (such as iCloud, Dropbox, OneDrive, or Google Drive). Mautonce does not have access to, and does not receive, store, back up, or process, User Content on the company's servers or any infrastructure under Mautonce's control. LTTR does not take User Content off your device or your own chosen cloud storage account.

3.3 No AI Processing

LTTR does not use artificial intelligence, machine learning, or large language models to read, analyze, summarize, generate, or otherwise process User Content, whether typed, dictated, or recorded, at any point during or after your use of the app. Mautonce's use of software development tools, including any AI-assisted coding tools used to build the app itself, does not involve access to, training on, or processing of User Content.

3.4 On-Device Feature Access

Certain LTTR features request device-level permissions in order to function. In each case, the resulting content is captured and stored locally on your device (or in your own connected cloud storage account, if you enable sync), exactly like any other content you create in the app. None of it is transmitted to, received by, or stored on Mautonce's servers.

• Microphone. The app requests microphone access only when you actively choose to create an audio recording. The resulting audio file is saved on your device like any other content.
• Photo Library. The app requests photo library access only when you choose to add a photo background to User Content. The selected image is saved on your device like any other content.
• Camera. The app does not access your device's camera directly.

You may review or revoke these permissions at any time in your device's system Settings. Revoking a permission does not affect content you have already created; it only prevents that feature from requesting new content until you re-enable it.

3.5 Responsibility

You are solely responsible for:

• The legality, accuracy, and appropriateness of User Content;
• Backing up User Content, including maintaining your own copies in your chosen cloud storage account; and
• Compliance with applicable laws when creating, storing, or sharing User Content, including any applicable copyright, defamation, privacy, or data protection laws.

Mautonce is not responsible for any loss, corruption, or unavailability of User Content resulting from device failure, operating system updates, third-party cloud service interruptions, or your own actions.

For details on how the App handles anonymous crash and error diagnostics (which never contain User Content), please see the Privacy Policy at https://www.lttr.now/legal#privacy.

Section 4: No Account Required; Diagnostic Data; No Service-Level Commitment

4.1 No Account Required

LTTR does not require you to create an account, provide an email address, or register as a user, and the app is designed to function without collecting any personal identifiers. You remain anonymous to Mautonce during all use of the app. Separately and entirely optionally, you may choose to subscribe to the LTTR Letter (the Company's newsletter) by providing your email address; this is a marketing subscription described in the Privacy Policy (Section 3.3), not an account, and it gates no features.

4.2 Anonymous Diagnostic and Analytics Data

The App may transmit two kinds of anonymous, non-content data to help the Company keep the App stable and understand which features are used:

(a) Crash and error reports are transmitted to Sentry (Functional Software, Inc., https://sentry.io) solely to help the Company identify and fix software bugs.

(b) Product-analytics events are transmitted to PostHog (PostHog, Inc., https://posthog.com) to help the Company understand which features are used. Product analytics are off by default and are sent only if you turn them on — during first-run setup or in Settings → Privacy → "Share anonymous usage data" — and you can turn them back off at any time.

Both kinds of data:

• Do not contain any User Content, including text, audio, file names, or document titles;
• Do not contain your name, email address, or any other personal identifier;
• Are not used for advertising, targeted marketing, cross-app tracking, or behavioral profiling; and
• Are each governed by the applicable service provider's privacy terms (Sentry, https://sentry.io; PostHog, https://posthog.com).

Separately, if you purchase a subscription, anonymous purchase-validation data is processed by RevenueCat as described in Section 5.2. You may review the app's full data practices in the Privacy Policy at https://www.lttr.now/legal#privacy.

4.3 No Service-Level Commitment

LTTR is provided on an "as-is" and "as-available" basis. Because User Content is stored on your device or in your own third-party cloud account, not on company servers, Mautonce makes no commitment regarding uptime, availability, performance levels, or data backup for on-device or third-party cloud storage. Mautonce is not responsible for content loss resulting from device failure, operating system changes, or third-party cloud service interruptions.

Section 5: Fees, In-App Purchases, and Billing

5.1 General

LTTR may offer optional paid features or subscriptions (including "Pro" or "Pro+Studio") available through in-app purchase on supported app distribution platforms, including but not limited to the Apple App Store, Google Play Store, and any other platform through which the App may be made available.

5.2 Payment Processing and Platform Billing

All in-app purchases are processed and billed exclusively by the app distribution platform through which you downloaded LTTR (e.g., Apple Inc. or Google LLC, each an "App Platform"). Mautonce does not collect, store, process, or have access to your payment card details or billing information at any point. Billing, subscription management, cancellation, and refunds are governed entirely by your App Platform's terms and policies, including:

• Apple App Store: https://www.apple.com/legal/internet-services/itunes/
• Google Play: https://play.google.com/intl/en_us/about/play-terms/
• Other platforms: Consult your platform's applicable payment terms and conditions

To determine which paid features your purchase entitles you to, the Company uses RevenueCat (RevenueCat, Inc.) to validate the purchase receipt issued by your App Platform. RevenueCat receives only the receipt/subscription transaction, its status, the product purchased, and an anonymous app-user identifier; it does not receive your payment card number, bank details, or billing address. RevenueCat's processing is described in the Privacy Policy (Section 3.2(c)) and governed by RevenueCat's privacy terms at https://www.revenuecat.com/privacy.

5.3 Cancellation and Refunds

You may cancel your subscription at any time through your device's operating system settings or App Platform account, in accordance with that platform's procedures. Mautonce does not issue refunds directly for in-app purchases. All refund requests must be directed to your App Platform provider and are subject entirely to that platform's refund policies. Cancellation takes effect at the end of the current billing period unless your App Platform specifies otherwise.

5.4 Auto-Renewal

If you purchase a subscription, it will automatically renew at the end of each billing period (monthly, annual, or other term as selected at purchase) unless you cancel before the renewal date. You will be charged through your App Platform account at the then-current subscription price. You are solely responsible for managing your subscription and disabling auto-renewal through your App Platform account settings.

5.5 Pricing and Availability

Subscription prices and available features may vary by region, platform, and currency. Mautonce reserves the right to modify pricing or discontinue features at any time, subject to the notice requirements in Section 13. If you have an active subscription at the time of a price change, the new price will apply at your next renewal date, and you will receive notice in accordance with your App Platform's policies and applicable law.

Section 6: Acceptable Use Policy

6.1 General Principle

LTTR is designed to serve as a private, powerful creative tool for writers, podcasters, screenwriters, authors, and audio producers. Mautonce has built LTTR around a foundational commitment to user privacy, local-first data storage, and the freedom to create without surveillance. In exchange for that commitment, users agree to use LTTR only for lawful purposes and in a manner that respects the rights, safety, and dignity of others.

You are solely responsible for all content you create, draft, record, store, export, publish, or otherwise produce using LTTR ("User Content"), and for all consequences that flow from that content, regardless of when and where those consequences arise including, but not limited to on-device, in connected cloud storage, or in any downstream channel through which the User Content is shared or published.

6.2 Prohibited Conduct — General

You agree that you will not use the app, directly or indirectly, to:

(a) Violate Any Applicable Law or Regulation, including but not limited to:

• Any federal, state, local, or international law, statute, ordinance, rule, or regulation;
• Any law governing the creation, distribution, or publication of audio recordings, written works, or scripted productions in any jurisdiction where User Content may be received or published;
• Any court order, injunction, consent decree, or other binding legal obligation to which you are subject.

(b) Infringe Intellectual Property Rights, including by:

• Reproducing, transcribing, recording, adapting, or distributing any copyrighted text, music, script, sound recording, or other protected work without the rights holder's authorization or a valid legal exception (such as fair use or fair dealing);
• Using the app to produce derivative works based on third-party intellectual property without appropriate licensing;
• Reverse engineering, decompiling, disassembling, or otherwise attempting to extract the source code or underlying algorithms of LTTR, except and solely to the extent permitted by applicable law notwithstanding this limitation.

(c) Violate Privacy Rights, including by:

• Recording any individual without their knowledge and consent where such consent is required by applicable law, including federal and state wiretapping and eavesdropping statutes;
• Creating, drafting, or producing content that discloses another person's private information, including home address, telephone number, financial account details, medical information, immigration status, or other personally sensitive data, without that person's consent and without a lawful basis for disclosure;
• Using the app's microphone or audio recording features to capture conversations, meetings, or performances involving other participants who have not consented to being recorded.

(d) Produce Harmful, Harassing, or Threatening Content, including by:

• Creating content that constitutes a credible threat of violence against any identifiable person, group, or organization;
• Drafting, scripting, or recording material designed to harass, intimidate, stalk, bully, or cause emotional distress to any individual;
• Producing content that sexualizes, demeans, or degrades any individual based on race, ethnicity, national origin, sex, gender identity, sexual orientation, religion, disability, age, or any other characteristic protected by applicable law.

(e) Exploit or Endanger Minors, including by:

• Creating, producing, storing, or exporting any written, scripted, or audio content that sexually exploits or depicts minors in a sexual manner, whether realistic or fictitious;
• Using the app to produce any content that would constitute child sexual abuse material (CSAM) under 18 U.S.C. § 2256 or any applicable state statute;
• Producing content designed to solicit, groom, or facilitate access to minors for any unlawful purpose.

This prohibition is absolute. There are no creative, fictional, artistic, or satirical exceptions to Section 6.2(e). Violation of this subsection will result in immediate termination of your access to the app and mandatory referral to the National Center for Missing and Exploited Children (NCMEC) and applicable law enforcement authorities to the fullest extent the company's on-device architecture permits.

(f) Facilitate Fraud, Deception, or Unlawful Commercial Activity, including by:

• Creating scripts, written content, or audio recordings intended to defraud, deceive, or mislead any person for financial gain;
• Producing phishing scripts, social engineering call scripts, fraudulent solicitation materials, or any content designed to induce another person to surrender money, property, credentials, or sensitive personal information under false pretenses;
• Using the app to draft or produce content in furtherance of any pyramid scheme, Ponzi scheme, multi-level marketing fraud, securities fraud, wire fraud, or other financially deceptive scheme.

(g) Produce or Distribute Malicious Content, including by:

• Using the app to draft documentation, instructions, or scripts designed to facilitate the creation or deployment of malware, ransomware, spyware, or other malicious code;
• Creating content that provides material assistance, instructions, or incitement for acts of terrorism, mass violence, or other acts prohibited under federal or state law;
• Producing content that constitutes incitement to imminent lawless action under applicable legal standards.

6.3 Impersonation, Synthetic Media, and AI-Generated Deception

Given LTTR's audio recording, scripting, podcasting, and audiobook production capabilities, this section addresses with particular specificity the use of the app to create deceptive content involving real, identifiable individuals.

6.3.1 Prohibited Impersonation Conduct

You may not use LTTR, including its writing, recording, scripting, or audio production features, to create, produce, prepare, export, publish, or facilitate any content that:

(a) Falsely Attributes Authorship, Speech, or Endorsement, including by:

• Creating written, scripted, or audio content that purports to be authored, narrated, spoken, or officially endorsed by a real, identifiable person who did not participate in or authorize that content;
• Drafting scripts, dialogues, interviews, or narratives designed to be presented as genuine statements made by a real person, without clear and conspicuous disclosure that the content is fabricated, fictionalized, or unauthorized;
• Producing audio recordings, whether recorded live through the app or assembled through editing, that are designed to deceive a listener into believing that a real, identifiable person made statements they did not in fact make.

(b) Constitutes a Deepfake or Synthetic Impersonation, meaning any content in which:

• A real person's likeness, voice, name, image, signature, persona, speech pattern, or other identifying characteristics are simulated, replicated, cloned, or fabricated, whether through AI voice synthesis, audio editing, text-to-speech systems, voice conversion technology, or any other means, without that person's prior, informed, and freely given written consent;
• A real person appears to say, write, narrate, perform, record, or endorse something they did not actually say, write, narrate, perform, record, or endorse;
• Audio produced within or exported from the app is manipulated, post-processed, or combined with AI-generated audio to create a false or misleading impression of a real person's voice, speech, accent, delivery, or performance.

(c) Exploits External AI Tools in Furtherance of Deception, including by:

• Submitting content created within the app, including drafts, scripts, transcripts, or exported audio, into any external large language model, voice cloning service, generative AI platform, or synthetic media tool for the purpose of fabricating content falsely attributed to a real, identifiable person;
• Importing AI-generated scripts, dialogue, narration, or audio produced by external tools into the app for the purpose of falsely attributing that content to a real person;
• Combining the app's legitimate recording or scripting features with external AI tools in any pipeline, workflow, or post-production process designed to produce deceptive impersonation content, whether for individual use or at scale.

6.3.2 Heightened Restrictions: Protected Categories of Individuals

The following categories of individuals are afforded heightened protection under this Section, and content targeting them is subject to stricter scrutiny and more immediate enforcement response:

6.3.3 No Safe Harbor for "Creative" or "Fictional" Framing

The fact that content is labeled, framed, or presented as satire, fiction, parody, a dramatization, fan fiction, a creative exercise, or an artistic work does not automatically exempt it from the prohibitions in Section 6.3. Content that a reasonable person would interpret as a genuine statement by, or an authentic recording of, a real identifiable individual, regardless of the label applied by its creator, remains prohibited under these Terms and may remain independently actionable under applicable law.

A label of "fictional" or "satirical" affixed to content that is otherwise designed, presented, or likely to be received as genuine does not constitute adequate disclosure for purposes of this Section.

6.3.4 Applicable Law Notice

Depending on your jurisdiction, the conduct prohibited by Section 6.3 may independently violate one or more of the following categories of law. You, not Mautonce, bear sole legal responsibility for any such violations:

6.4 Consequences of Violation

6.4.1 Honest Acknowledgment of Architectural Constraints

LTTR is designed around a foundational privacy commitment: user content is stored exclusively on the user's device or in user's own third-party cloud storage account, and Mautonce does not operate servers that receive, process, monitor, or retain User Content. This architecture is intentional and reflects the company's core values.

As a direct consequence of this design, Mautonce does not possess real-time technical capability to monitor user use of LTTR, intercept User Content, remotely lock app installations, or unilaterally delete content stored on user's device or in user's personal cloud storage. Mautonce makes no representation to the contrary.

This limitation does not reduce, waive, excuse, or otherwise affect user's legal obligations under these Terms, Privacy Policy, or under applicable law. You remain fully and solely responsible for compliance with Section 6 regardless of the Company's technical ability, or inability, to detect, monitor, or prevent a violation. The absence of technical enforcement does not imply permission.

6.4.2 Enforcement Actions Available to the Company

Despite the architectural constraints described in Section 6.4.1, Mautonce retains the following enforcement options and reserves the right to exercise any or all of them, individually or in combination, upon becoming aware of a violation through any lawful means:

(a) Platform Reporting and Escalation

Mautonce may report a violating user, device, or app installation to the applicable platform provider, including Apple Inc. and Google LLC, through their respective developer abuse reporting and trust-and-safety channels. Platform providers retain independent authority to:

• Suspend or permanently terminate the violating user's App Store or Google Play account;
• Revoke the user's access to the app by disabling their ability to download, restore, or reinstall it;
• Invalidate the App Store transaction or purchase receipt associated with the violating user's account;
• Remove content shared through platform-integrated services (such as iCloud) to the extent permitted by platform policy and applicable law;
• Take any other action within the platform provider's independent authority under their own terms of service.

Mautonce will actively utilize platform reporting mechanisms in response to credible reports of serious violations, including but not limited to violations involving minors, deepfakes targeting identifiable individuals, or content that constitutes or facilitates criminal conduct.

(b) App-Level Feature Restriction via Software Update

Where a specific app feature has been identified as the subject of systematic abuse, even where the company cannot identify individual violators, Mautonce reserves the right to modify, restrict, gate, or remove that feature in a future app update submitted through the applicable platform's review process. Such updates may:

• Add friction, confirmation dialogs, or disclosure requirements to features susceptible to abuse;
• Restrict the output formats or export capabilities of features implicated in systematic abuse;
• Introduce anonymous, non-identifying technical controls designed to reduce the utility of the app for prohibited purposes without compromising the privacy of legitimate users.

No such feature modification shall constitute a breach of these Terms or entitle you to a refund, except as expressly required by applicable platform provider refund policies.

(c) Anonymous Technical Controls

To the extent consistent with the company's privacy commitments, Mautonce may implement privacy-preserving technical controls that do not identify individual users but that reduce the app's utility for prohibited purposes at the application level. Any such controls will:

• Not collect, transmit, or store any personally identifiable information;
• Not target or identify individual users or devices;
• Apply uniformly across all users of a given app version or feature set;
• Be disclosed in the app's release notes or updated Privacy Policy to the extent practicable.

(d) Legal Process and Law Enforcement Cooperation

Mautonce may pursue, initiate, or cooperate with the following legal mechanisms:

• Subpoena or Legal Process Against Platform Providers: Apple and Google retain transaction records, device identifiers (such as Apple's IDFV or Google's advertising ID where applicable), and account information associated with app purchases. Mautonce may seek or support legal process directed at platform providers to identify violating users in connection with civil litigation or criminal referral.
• Civil Litigation: Mautonce may initiate civil proceedings against identified violators seeking injunctive relief, compensatory damages, statutory damages where available under applicable law, and recovery of attorneys' fees and costs.
• Law Enforcement Referral: Mautonce may refer credible reports of criminal conduct, including but not limited to violations involving minors, criminal deepfake statutes, identity fraud, wire fraud, or threats of violence, to the Federal Bureau of Investigation (FBI), the Internet Crime Complaint Center (IC3), the National Center for Missing and Exploited Children (NCMEC), or any applicable state or local law enforcement agency.
• Regulatory Reporting: Mautonce may report violations to applicable regulatory bodies, including state attorneys general's offices, the Federal Trade Commission (FTC), or election authorities where political deepfake violations are implicated.

(e) CSAM Mandatory Reporting

Notwithstanding any other provision of these Terms, if Mautonce obtains actual knowledge of any apparent violation of 18 U.S.C. § 2256 et seq. (child sexual abuse material) in connection with LTTR, the company is required by law under 18 U.S.C. § 2258A to make a report to the NCMEC CyberTipline. This obligation is non-discretionary and cannot be waived, limited, or modified by any provision of these Terms or by any agreement between the company and any user.

6.4.3 The Role of These Terms in Legal Proceedings

Even where the company lacks the technical ability to prevent or immediately stop a violation, these Terms serve critical legal functions that preserve Mautonce's rights and establish your accountability:

• Notice of Prohibition: Your acceptance of these Terms, whether by click-through or by use of LTTR, constitutes legally cognizable notice that the conduct described in Section 6 is prohibited. This notice is relevant to your mental state (mens rea) in any subsequent criminal proceeding and to the availability of enhanced damages in civil proceedings.
• Contractual Liability: Your violation of Section 6 constitutes a material breach of these Terms, giving rise to Mautonce's right to pursue breach of contract claims independent of any tort or statutory cause of action.
• Indemnification Trigger: Violations of Section 6 constitute a triggering event under Section 11, making you responsible for any costs, damages, claims, or legal fees the company incurs as a result of your violation, including costs associated with responding to third-party claims, regulatory inquiries, or law enforcement requests.
• Waiver of Limitation of Liability: To the fullest extent permitted by applicable law, the liability cap outlined in Section 10.1 does not apply to damages arising from your intentional, knowing, or reckless violation of Section 6. The company's claim against a willful violator is not subject to the $50 aggregate cap or any other limitation outlined in Section 10.

6.4.4 Third-Party Victims' Independent Rights

Nothing in this Section limits the right of any third party harmed by your violation of Section 6 to pursue independent civil or criminal remedies against you directly. Mautonce is not a necessary party to such proceedings, and this Section is not intended to be, and shall not be construed as, the exclusive remedy available to persons harmed by your conduct.

6.4.5 Platform Provider Independence

Nothing in this Section limits the right of Apple, Google, or any other platform provider through which the app is distributed to independently suspend, remove, restrict, or terminate your platform account or your access to the app in connection with your violation of their own terms of service, applicable law, or platform-level trust-and-safety policies. Mautonce:

• Is not responsible for any platform-level enforcement action taken against you;
• Has no obligation to intervene on your behalf in any platform enforcement proceeding;
• Expressly reserves the right to cooperate with, and provide information to, any platform provider conducting a trust-and-safety investigation related to your use of LTTR, to the extent consistent with the company's privacy commitments and applicable law.

6.5 Reporting Violations

If you become aware of content produced using LTTR that you believe violates this Section, particularly Section 6.2(e) (exploitation of minors) or Section 6.3 (impersonation and deepfakes), you may report it to Mautonce at:

Contact Form: https://www.lttr.now/helpdesk

Email: LTTR@mautonce.com

The company will review reports in good faith and take action to the extent permitted by its on-device architecture and applicable law. The company cannot guarantee a response timeline or a specific outcome for every report, but takes reports involving minors and deepfakes as priority matters.

6.6 Neutral Tool; No Synthetic-Voice Features; Interactive Computer Service

LTTR is a neutral creative tool. It provides recording, typing, scripting, and audio-editing features that are indifferent to the content a user chooses to create, and it does not ship, and the Company does not offer within the App, any voice cloning, voice conversion, text-to-speech, speech synthesis, or automated impersonation capability. Any deceptive, infringing, or unlawful content described in Section 6.3 is created solely by the user, using the user's own inputs, and — where applicable — external tools outside the App that the user separately chooses to employ in violation of these Terms.

To the extent applicable, the Company is a provider of an interactive computer service within the meaning of Section 230 of the Communications Decency Act, 47 U.S.C. § 230, and does not develop, or materially contribute to the unlawful character of, User Content. Nothing in this Section limits any claim expressly excepted from Section 230 (including intellectual-property and right-of-publicity claims under 47 U.S.C. § 230(e)) or any obligation the Company owes under applicable law; those are governed by the remainder of these Terms, including the allocation of responsibility and indemnification in Sections 6 and 11.

Section 7: Third-Party Services and Integrations

7.1 Optional Integrations

The App may integrate with optional third-party services that you choose to connect, including:

• iCloud (Apple Inc.) — cloud storage
• Dropbox (Dropbox, Inc.) — cloud storage
• OneDrive (Microsoft Corporation) — cloud storage
• Google Drive (Google LLC) — cloud storage
• Sentry (Functional Software, Inc., https://sentry.io) — anonymous crash and error reporting only (see Section 4.2)
• PostHog (PostHog, Inc., https://posthog.com) — anonymous, opt-out product analytics only (see Section 4.2)
• RevenueCat (RevenueCat, Inc., https://www.revenuecat.com) — anonymous subscription-receipt validation only, and only if you make a purchase (see Section 5.2)

Sentry, PostHog, and RevenueCat act as the Company's data processors on the limited, anonymous data described in Sections 4.2 and 5.2; they never receive User Content or your payment/billing details. All cloud storage integrations are established at your direction. When you connect a third-party cloud storage service, User Content is transmitted directly between your device and that service under your own account credentials. Mautonce is not a party to that transmission and does not receive, intercept, or store any content transmitted to or from your third-party cloud storage account.

7.2 Third-Party Terms

Your use of any third-party service integrated with the app is governed by that service's own terms of service and privacy policy. Mautonce is not responsible for:

• The availability, functionality, performance, or security of any third-party service;
• Changes to a third-party service's terms, pricing, or data-handling practices;
• Data loss, corruption, or security incidents occurring within or attributable to a third-party service; or
• Any cost, charge, or fee assessed by a third-party service in connection with your use.

7.3 No Endorsement

The inclusion of a third-party service integration in the app does not constitute an endorsement, recommendation, or warranty by Mautonce regarding that service.

Section 8: Intellectual Property

8.1 Company Ownership

LTTR, including its software, source code, user interface, design, graphics, text, logos, wordmark, and all related intellectual property, is owned by or licensed to Mautonce and is protected by U.S. and international copyright, trademark, patent, and other intellectual property laws. Nothing in these Terms transfers any ownership interest in LTTR or its intellectual property to you.

8.2 User Content

As stated in Section 3.1, you retain full ownership of User Content. Mautonce claims no intellectual property rights over anything you create using LTTR.

8.3 Limited License to You

These Terms grant you only the limited license outlined in Section 2.1. No other rights are granted, implied, or transferred, and no ownership or intellectual property rights in LTTR are conveyed to you.

8.4 Feedback

If you voluntarily provide Mautonce with ideas, suggestions, comments, or feedback about the LTTR ("Feedback"), you grant Mautonce a perpetual, worldwide, royalty-free, irrevocable, sublicensable license to use, reproduce, modify, and incorporate that Feedback into LTTR or related products without compensation or attribution. You represent that your Feedback does not include any confidential information belonging to a third party.

Section 9: Disclaimer of Warranties

To the maximum extent permitted by applicable law:

LTTR is provided "as is" and "as available," without warranty of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, title, non-infringement, security, or accuracy, and any warranties arising from course of dealing or usage of trade.

Mautonce does not warrant that:

• The app will be error-free, secure, and/or uninterrupted at all times;
• Defects or errors will be identified or corrected;
• The app is free of viruses, malicious code, or other harmful components;
• The app will be compatible with your device, operating system, or third-party cloud storage service now or in the future; or
• User Content will be preserved, recoverable, or free from corruption in the event of a device failure, operating system update, or third-party service disruption.

Because User Content is stored on your device or in your own cloud storage account and not on company servers, Mautonce has no ability to recover lost or corrupted content on your behalf. You assume sole responsibility for maintaining adequate backups of User Content.

You assume all risk for any damage to your device, loss of data, or other harm resulting from your use of the app or your connection of the app to any third-party service.

Section 10: Limitation of Liability

To the maximum extent permitted by applicable law:

Mautonce and its Officers, Directors, Employees, Agents, affiliates, and licensors shall not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, including but not limited to loss of profits, loss of data or creative work product, loss of use, loss of goodwill, business interruption, or other intangible losses, arising out of or related to:

• Your use of or inability to use the app;
• Any loss, corruption, or unavailability of User Content, whether stored on your device or in a third-party cloud storage service you have connected to the app;
• Any unauthorized access to your device or your third-party cloud storage account;
• Any interruption, suspension, or discontinuation of the app or any third-party service integrated with the app;
• Any bug, virus, trojan, or other harmful code introduced into the app or your device by a third party;
• Any content created, stored, or shared by you or any other person using your device or your app installation; or
• Any other matter relating to the app, these terms, or your relationship with the company,

Even if the company has been advised of the possibility of such damages, and even if a remedy set forth herein is found to have failed of its essential purpose.

10.1 Aggregate Liability Cap

In no event shall the company's total aggregate liability to you for all claims arising out of or related to the app or these terms exceed the greater of:

• (a) the total amount you paid to your app platform provider (e.g., apple or google) for access to the app's paid features in the twelve (12) months immediately preceding the event giving rise to the claim; or
• (b) fifty dollars (usd $50.00).

Because the company does not directly process or receive payment from you, all billing is handled exclusively by your app platform provider. The amount described in clause (a) above shall be determined by reference to your app platform purchase records. The company may request that you provide reasonable documentation of such payments in connection with any claim.

10.2 Content Loss Acknowledgment

Because the app stores User Content exclusively on your device or in your own third-party cloud storage account, and because the company does not retain copies of User Content on company servers, the company has no ability to restore, recover, or compensate you for lost or corrupted content under any circumstances. You expressly acknowledge this limitation and agree that you are solely responsible for maintaining adequate and independent backups of User Content.

10.3 Jurisdictional Variations

Some jurisdictions do not allow the exclusion or limitation of incidental, consequential, or other damages, or the limitation of liability to specified amounts. If you are a resident of such a jurisdiction, the above limitations and exclusions apply to you only to the fullest extent permitted by the laws of that jurisdiction. Nothing in these terms limits the company's liability for fraud, fraudulent misrepresentation, death or personal injury caused by the company's negligence, or any other liability that cannot be excluded or limited under applicable law.

Section 11: Indemnification

11.1 Your Indemnification Obligations

To the fullest extent permitted by applicable law, you agree to defend, indemnify, and hold harmless Mautonce, and its officers, directors, members, employees, agents, successors, and assigns (collectively, the "Indemnified Parties") from and against any and all claims, demands, actions, proceedings, losses, liabilities, damages, judgments, penalties, fines, costs, and expenses, including reasonable attorneys' fees and court costs, arising out of or relating to:

(a) Your access to or use of LTTR, including any use that violates these Terms;

(b) User Content, including any claim by a third party that User Content, as created, recorded, stored, exported, published, or otherwise used by you through or in connection with the app's functionality, infringes, misappropriates, or violates any intellectual property right, privacy right, right of publicity, defamation law, or any other right of any third party;

(c) Your violation of any provision of Section 6 (Acceptable Use Policy), including but not limited to any claim arising from impersonation, synthetic media, deepfake content, or AI-generated deception as described in Section 6.3;

(d) Your violation of any applicable federal, state, local, or international law, statute, regulation, rule, or court order in connection with your use of the app;

(e) Any third-party claim arising from content you export, publish, distribute, or otherwise transmit beyond the app to any platform, service, audience, or recipient; or

(f) Your gross negligence or willful misconduct in connection with the app.

11.2 Scope of Content Indemnification

For clarity, the indemnification obligation in Section 11.1(b) applies to User Content solely in connection with the App's functionality, that is, claims arising from how you created, recorded, stored, or exported content using the app's features. Because Mautonce never possesses, receives, hosts, or controls User Content on its own servers, the company's exposure to third-party claims arising from User Content is limited to its role as the developer and distributor of the tool you used to create it. Your indemnification obligation under this Section is not limited to that exposure and covers all downstream claims arising from User Content regardless of how or where it is ultimately published or shared.

11.3 Company's Obligations: Carve-Out for Company Fault

The indemnification obligations in Section 11.1 do not apply to the extent that a claim arises from:

(a) The Company's own gross negligence or willful misconduct;

(b) The Company's material breach of these Terms; or

(c) Any matter for which applicable law prohibits indemnification.

11.4 Indemnification Procedure

(a) Notice. The company will provide you with prompt written notice of any claim for which it intends to seek indemnification under this Section. Notice will be provided through whatever contact information you have voluntarily provided to the company or, where no contact information exists (as is typical given the app's no-account architecture), through any in-app notification mechanism or legal process available. In any event, notice will be provided within thirty (30) days of the company becoming aware of the claim, to the extent practicable.

(b) Cooperation. You agree to reasonably cooperate, at your own expense, in the defense of any indemnified claim, including by providing information, documentation, or testimony reasonably requested by the company or its counsel.

(c) Control of Defense. The company reserves the right, at its own expense, to assume exclusive control of the defense and settlement of any claim subject to indemnification. You may not settle any indemnified claim in a manner that imposes any obligation, restriction, admission of liability, or non-monetary burden on the company without the company's prior written consent.

(d) Settlement Limitation. The company may not settle any indemnified claim on your behalf in a manner that imposes any non-monetary obligation on you, including any admission of liability, injunctive relief, or ongoing restriction on your conduct, without your prior written consent, which shall not be unreasonably withheld.

11.5 Waiver of Limitation of Liability for Indemnified Claims

To the fullest extent permitted by applicable law, the aggregate liability cap outlined in Section 10.1 does not apply to your indemnification obligations under this Section 11. Your obligation to indemnify the Indemnified Parties is not subject to any dollar limitation and is not affected by any limitation of liability provision in these Terms.

Section 12: Dispute Resolution and Arbitration

12.1 Informal Resolution — Required First Step

Before initiating any formal arbitration or legal proceeding, you and the Company each agree to attempt in good faith to resolve any dispute, claim, or controversy informally. The party seeking resolution must provide written notice to the other party describing the nature of the dispute, the relief sought, and a reasonable basis for the claim. The parties agree to negotiate in good faith for a period of thirty (30) days following receipt of such notice before either party may initiate arbitration. This informal resolution requirement is a condition precedent to arbitration and may not be waived except by written agreement of both parties.

Given the App's no-account architecture, written notice from you to the Company for purposes of this Section must be directed to:

Mautonce

Attn: Legal Dispute Notice

980 N Michigan Ave Ste 1090 PMB 108751

Chicago, IL 60611, United States

12.2 Binding Arbitration

PLEASE READ THIS SECTION CAREFULLY. IT AFFECTS YOUR LEGAL RIGHTS, INCLUDING YOUR RIGHT TO FILE A LAWSUIT IN COURT AND YOUR RIGHT TO A JURY TRIAL.

Except as provided in Section 12.7 (Exceptions to Arbitration), you and the Company agree that any and all disputes, claims, or controversies arising out of or relating to these Terms, the App, your use of the App, or the relationship between you and the Company — whether based in contract, tort, statute, fraud, misrepresentation, or any other legal or equitable theory — shall be resolved exclusively through final and binding individual arbitration, rather than in a court of law.

This agreement to arbitrate is governed by the Federal Arbitration Act, 9 U.S.C. § 1 et seq. ("FAA"), and shall be interpreted and enforced in accordance with the FAA to the fullest extent possible. The FAA governs the interpretation, enforcement, and all proceedings pursuant to this Section, even if applicable state law would otherwise govern.

12.3 Arbitration Rules and Procedures

(a) Administrator. Arbitration shall be administered by JAMS (Judicial Arbitration and Mediation Services, Inc.) in accordance with the JAMS Streamlined Arbitration Rules and Procedures in effect at the time the arbitration is initiated ("JAMS Rules"), except as modified by these Terms. The JAMS Rules are available at www.jamsadr.com or by calling JAMS at 1-800-352-5267. If JAMS is unavailable or declines to administer the arbitration, the parties shall mutually agree on an alternative arbitration administrator. If the parties cannot agree, a court of competent jurisdiction shall appoint an administrator.

(b) Arbitrator. The arbitration shall be conducted before a single, neutral arbitrator selected in accordance with the JAMS Rules. The arbitrator shall have exclusive authority to resolve all threshold arbitrability questions, including disputes about the scope, enforceability, or applicability of this arbitration agreement, with the exception of questions about the validity or enforceability of the Class Action Waiver in Section 12.5, which are reserved for a court of competent jurisdiction.

(c) Location and Format. Unless you and the Company agree otherwise, arbitration hearings shall be conducted:

• By videoconference, telephone, or written submission where the amount in dispute does not exceed $10,000; or
• In Cook County, Illinois, for disputes exceeding that threshold, unless the JAMS Rules or applicable law require a different location.

(d) Language. All arbitration proceedings shall be conducted in the English language.

(e) Confidentiality. All arbitration proceedings, submissions, filings, awards, and related communications shall be kept strictly confidential by both parties, except as necessary to enforce an arbitration award or as required by applicable law.

12.4 Filing Fees and Costs

(a) Your filing fee for initiating an arbitration under this Section shall not exceed $250 (USD). The Company shall bear all remaining JAMS administrative fees, arbitrator fees, and other costs of arbitration, regardless of which party prevails, except as otherwise required by the JAMS Rules.

(b) Each party shall bear its own attorneys' fees and costs unless the arbitrator determines that a claim was frivolous or brought in bad faith, in which case the arbitrator may award attorneys' fees and costs against the offending party.

(c) If the arbitrator determines that the relief you sought was frivolous, brought in bad faith, or asserted for an improper purpose, the arbitrator may require you to reimburse the Company for any filing fees or arbitration costs the Company advanced on your behalf.

12.5 Class Action Waiver

YOU AND THE COMPANY EACH AGREE THAT ALL DISPUTES SHALL BE ARBITRATED ON AN INDIVIDUAL BASIS ONLY. NEITHER YOU NOR THE COMPANY MAY BRING OR PARTICIPATE IN ANY CLASS ACTION, COLLECTIVE ACTION, CONSOLIDATED ACTION, PRIVATE ATTORNEY GENERAL ACTION, OR REPRESENTATIVE PROCEEDING IN ARBITRATION OR IN COURT, EXCEPT AS PROVIDED BELOW.

The arbitrator may not consolidate more than one person's claims, may not preside over any form of class or representative proceeding, and may not award relief to any person other than you individually, except as the arbitrator may award public injunctive relief to the extent required by applicable law and not waivable by contract.

Severability Backstop: If the class action waiver in this Section is found to be unenforceable as to a particular claim or remedy by a court of competent jurisdiction, then that specific claim or remedy shall be severed from arbitration and may be pursued in a court of competent jurisdiction, while all remaining claims shall continue to be resolved through binding individual arbitration. The unenforceability of the class action waiver as to one claim shall not affect the enforceability of this arbitration agreement as to any other claim.

12.6 Mass Arbitration Procedures

If seventy-five (75) or more substantially similar arbitration demands against the Company are filed within any one hundred eighty (180) day period by users represented by the same counsel or coordinated group of counsel ("Mass Arbitration"), the following modified procedures shall apply:

(a) JAMS Mass Arbitration Procedures shall govern in place of the standard JAMS Streamlined Rules, to the extent the two sets of rules conflict;

(b) A Special Master or Coordinating Arbitrator shall be appointed to manage the Mass Arbitration proceeding; if the parties do not agree on one within thirty (30) days, JAMS shall appoint one;

(c) The Mass Arbitration shall proceed by a bellwether protocol — a representative sample of no fewer than ten (10) and no more than thirty (30) cases are arbitrated first, and the results are used as the basis for a global mediation of the remaining claims before any further individual arbitrations advance. This process is mandatory, not optional;

(c-1) Fees follow the batches. Notwithstanding Section 12.4, arbitration and administrative fees for demands beyond the bellwether sample accrue and become payable only as those demands are actually reached under the staged schedule in this Section — not upon the mass filing of demands — so that fee obligations track the bellwether/mediation sequence rather than being front-loaded across all demands at once;

(d) Filing fees for individual claimants in a Mass Arbitration shall not exceed the $250 cap established in Section 12.4(a); and

(e) Nothing in this Section 12.6 shall be construed to permit class treatment of individual claims or to override the Class Action Waiver in Section 12.5.

12.7 Exceptions to Arbitration

Notwithstanding the foregoing, either party may pursue the following in a court of competent jurisdiction without first submitting to arbitration:

(a) Claims for emergency injunctive or other equitable relief to prevent imminent, irreparable harm — including but not limited to claims arising from unauthorized use of the Company's intellectual property, breach of confidentiality obligations, or violations of Section 6.3 (Impersonation and Deepfakes) — pending final resolution by an arbitrator;

(b) Claims within the jurisdiction of a small claims court in the county and state of your residence, provided the claim remains in small claims court and is not removed or transferred; and

(c) Any claim that applicable law expressly requires to be heard in court and that cannot be waived by private agreement.

12.8 Governing Law

These Terms and any dispute arising out of or relating to the App or these Terms shall be governed by and construed in accordance with the laws of the State of Illinois, without regard to its conflict of laws principles.

Savings Clause: Nothing in this Section overrides, limits, or waives any mandatory consumer protection rights you may have under the laws of your state of residence that cannot be waived or modified by contract. If you are a resident of a jurisdiction whose consumer protection laws provide rights that are broader than those provided under Illinois law, and those rights cannot be contractually waived, those rights are preserved.

12.9 Venue for Non-Arbitrated Claims

For any claims that are not subject to arbitration under Section 12.7, or for judicial proceedings to enforce an arbitration award, you and the Company each consent to the exclusive personal jurisdiction and venue of the state and federal courts located in Cook County, Illinois. You waive any objection to the laying of venue in Cook County, Illinois, and waive any claim that such courts constitute an inconvenient forum.

12.10 Jury Trial Waiver

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, YOU AND THE COMPANY EACH KNOWINGLY, VOLUNTARILY, AND IRREVOCABLY WAIVE ANY RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING, OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THESE TERMS OR THE APP. THIS WAIVER APPLIES TO ALL CLAIMS WHETHER BASED IN CONTRACT, TORT, STATUTE, OR ANY OTHER LEGAL THEORY.

12.11 Statute of Limitations

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY CLAIM OR CAUSE OF ACTION ARISING OUT OF OR RELATING TO THESE TERMS OR THE APP MUST BE FILED WITHIN ONE (1) YEAR AFTER THE CLAIM OR CAUSE OF ACTION FIRST ACCRUED. ANY CLAIM NOT FILED WITHIN THIS PERIOD IS PERMANENTLY BARRED. THIS SHORTENED LIMITATION PERIOD APPLIES REGARDLESS OF ANY LONGER PERIOD PROVIDED BY APPLICABLE LAW, EXCEPT WHERE SUCH LONGER PERIOD IS MANDATED AND NON-WAIVABLE UNDER THE LAW OF YOUR STATE OF RESIDENCE.

12.12 Arbitration Opt-Out

You may opt out of this arbitration agreement within thirty (30) days of first downloading, installing, or using the App by sending a written opt-out notice that includes your name and a clear statement that you wish to opt out of arbitration to:

Option A — Postal Mail (preferred for enforceability):

Mautonce LLC

Attn: Arbitration Opt-Out

980 N Michigan Ave, Ste 1090

PMB 108751, Chicago, IL 60611, United States

Option B — Web Form:

https://www.lttr.now/helpdesk

Your opt-out notice must be postmarked or electronically submitted within the 30-day window. Opting out of arbitration does not affect any other provision of these Terms. If you opt out, both you and the Company retain the right to pursue claims in court subject to the venue provisions of Section 12.9.

Section 13: Changes to These Terms

13.1 Company's Right to Modify

The Company reserves the right to modify, update, revise, or replace these Terms at any time, in its sole discretion. All changes will be effective as of the date specified in the updated Terms, subject to the notice requirements in this Section.

13.2 Notice of Material Changes

For material changes — meaning any change that meaningfully affects your legal rights, obligations, or the core functionality of the App — the Company will provide at least thirty (30) days' advance notice before the change takes effect, through one or more of the following mechanisms:

(a) An in-app notification displayed prominently within the App on launch or during active use, which shall be the primary and preferred notification method given the App's no-account architecture;

(b) A notice displayed on the App's page in the applicable platform marketplace (Apple App Store or Google Play Store), where technically feasible; or

(c) Any other method reasonably calculated to provide actual notice to users of the App.

Because the App does not maintain user accounts, in-app notification is the primary and controlling method for delivering notice of material changes, and you agree that such in-app notification constitutes sufficient and effective notice for all purposes under these Terms.

13.3 Non-Material Changes

For non-material changes — including corrections of typographical errors, clarifications that do not alter the substance of any provision, reorganization or renumbering of sections, or updates to placeholder information such as contact addresses or URLs — the Company may update these Terms without advance notice. The updated Terms will be effective upon posting, and your continued use of the App after posting constitutes acceptance of the updated Terms.

13.4 Your Right to Reject Changes

If you do not agree with any material change to these Terms, your sole and exclusive remedy is to stop using the App and, if applicable, to submit a cancellation or refund request through the applicable platform provider (Apple App Store or Google Play Store) in accordance with that provider's policies. The Company does not process refunds directly. Your continued use of the app following the effective date of any change constitutes your acceptance of the updated Terms in their entirety.

Section 14: Term and Termination

14.1 Term

These Terms are effective as of the date you first download, install, or use the App (whichever occurs first) and continue in full force and effect for as long as you use the App or until terminated in accordance with this Section.

14.2 Termination by You

You may terminate these Terms at any time by permanently deleting the App from all of your devices and discontinuing all use of the App. Because the App does not maintain accounts or user registrations, no additional steps — such as account cancellation or deregistration — are required to complete termination. Your deletion of the App constitutes your affirmative act of termination.

14.3 Termination or Suspension by the Company

The Company reserves the right to terminate or suspend your right to use the App, effective immediately and without prior notice, to the extent technically feasible given the App's no-account architecture, if:

(a) You violate any provision of these Terms, including but not limited to Section 6 (Acceptable Use Policy);

(b) The Company, in its reasonable discretion, determines that your use of the App poses a legal, regulatory, reputational, or security risk to the Company, third parties, or the App itself;

(c) The Company is required to do so by applicable law, court order, or governmental authority; or

(d) The Company ceases to operate or distribute the App generally.

14.4 Effect of No-Account Architecture on Enforcement

You acknowledge and agree that, because the App does not require account creation, user registration, or authentication, the Company's practical ability to enforce termination on an individual-user basis is limited to the technical and legal levers described in Section 6.4.2 (Enforcement Actions Available to the Company), including but not limited to:

(a) Reporting your device or App instance to the applicable platform provider (Apple or Google) for removal from your account or device;

(b) Deploying App updates that restrict or disable features implicated in a Terms violation;

(c) Pursuing legal remedies, including injunctive relief, civil litigation, or referral to law enforcement, independent of any technical termination capability; and

(d) Any other technical, legal, or equitable remedy available to the Company.

The Company's inability to immediately and technically prevent a terminated user from continuing to use a previously downloaded version of the App does not constitute a waiver of its rights under these Terms or under applicable law, and does not limit the Company's right to pursue all available remedies for past or ongoing violations.

14.5 Effect of Termination

Upon termination of these Terms for any reason:

(a) All rights and licenses granted to you under these Terms immediately cease;

(b) You must immediately cease all use of the App and delete it from all devices;

(c) All provisions of these Terms that by their nature should survive termination — including but not limited to Section 6 (Acceptable Use Policy), Section 8 (Intellectual Property), Section 9 (Disclaimers), Section 10 (Limitation of Liability), Section 11 (Indemnification), Section 12 (Dispute Resolution and Arbitration), and Section 15 (General Provisions) — shall survive and remain in full force and effect; and

(d) Termination does not limit the Company's right to pursue any other remedies available at law or in equity for any violation of these Terms that occurred prior to termination.

14.6 User Content Upon Termination

Because the Company never stores, hosts, or controls User Content, termination of these Terms has no effect on the location, accessibility, or integrity of User Content. User Content remains stored wherever you have chosen to store it — on-device or in your chosen third-party cloud service — entirely outside the Company's control. It is your sole responsibility to manage, retain, export, or delete User Content in connection with any termination.

Section 15: General Provisions

15.1 Entire Agreement

These Terms constitute the entire agreement between you and the Company with respect to the App and supersede all prior and contemporaneous understandings, agreements, representations, warranties, negotiations, and communications — whether written or oral — relating to the subject matter of these Terms. No prior drafts, term sheets, or discussions shall be used in the interpretation of these Terms.

15.2 Severability

If any provision of these Terms is held by a court or arbitrator of competent jurisdiction to be invalid, illegal, unenforceable, or contrary to applicable law, that provision shall be modified to the minimum extent necessary to make it enforceable, or if it cannot be so modified, it shall be severed from these Terms. The remaining provisions of these Terms shall continue in full force and effect, unaffected by the invalidity or unenforceability of the severed provision. The parties intend that the severed provision be replaced with the closest enforceable provision that reflects the original intent of the parties.

15.3 Waiver

The Company's failure to enforce any provision of these Terms, or to exercise any right or remedy available under these Terms, shall not constitute a waiver of that provision, right, or remedy with respect to any future violation or occurrence. No waiver of any provision of these Terms shall be effective unless it is in writing and signed by an authorized representative of the Company. A single or partial exercise of any right or remedy does not preclude any other or further exercise of that right or remedy.

15.4 Assignment

You may not assign, transfer, delegate, or sublicense your rights or obligations under these Terms — in whole or in part — without the prior written consent of the Company. Any purported assignment in violation of this Section is null and void.

The Company may freely assign, transfer, or delegate its rights and obligations under these Terms — including in connection with a merger, acquisition, sale of assets, corporate restructuring, or operation of law — without your prior consent. In the event of any such assignment, the Company will use commercially reasonable efforts to notify you through in-app notification, and the assignee shall be bound by the obligations of the Company under these Terms.

15.5 No Third-Party Beneficiaries

These Terms are for the sole benefit of you and the Company. Nothing in these Terms, express or implied, is intended to or shall create any legal or equitable right, benefit, claim, or remedy in or on behalf of any third party.

15.6 Force Majeure

The Company shall not be liable for any delay, failure, or interruption in the availability or functionality of the App arising from causes beyond the Company's reasonable control, including but not limited to acts of God, natural disasters, war, terrorism, civil unrest, epidemic or pandemic, governmental action, changes in applicable law or regulation, failure of third-party infrastructure (including platform providers, cloud services, or telecommunications networks), power outages, or cyberattacks. This provision does not excuse the Company's obligations with respect to refunds or termination rights governed by the applicable platform provider.

15.7 Relationship of the Parties

Nothing in these Terms creates or shall be construed to create a partnership, joint venture, employment relationship, franchise, or agency relationship between you and the Company. You are an independent party, and neither party has authority to bind the other to any obligation or agreement.

15.8 Headings and Interpretation

Section headings in these Terms are for convenience and organizational purposes only. They do not affect the interpretation or legal effect of any provision. As used in these Terms: (a) "including" means "including without limitation"; (b) references to a statute or regulation include all amendments thereto and successor provisions; (c) the word "or" is not exclusive unless the context clearly requires otherwise; and (d) the singular includes the plural and vice versa.

15.9 Export Compliance

You represent and warrant that you are not located in, under the control of, or a national or resident of any country subject to a U.S. government embargo or trade sanction, and that you are not listed on any U.S. government list of prohibited or restricted parties. You agree not to use, export, re-export, or transfer the App in violation of any U.S. export control laws or regulations, including the Export Administration Regulations and the regulations of the Office of Foreign Assets Control.

15.10 Accessibility

The Company is committed to making the App accessible to users with disabilities to the extent reasonably practicable. If you experience accessibility barriers in connection with the App or these Terms, please contact the Company using the information in Section 16.

15.11 Electronic Communications

By using the App, you consent to receiving communications from the Company electronically, including through in-app notifications and any web-based forms the Company makes available. You agree that such electronic communications satisfy any applicable legal requirement that communications be provided in writing, to the extent permitted by applicable law.

15.12 Feedback

If you choose to submit feedback, suggestions, ideas, improvement requests, or other comments regarding the App to the Company ("Feedback"), you hereby grant the Company a perpetual, irrevocable, worldwide, royalty-free, fully paid-up, sublicensable, and transferable license to use, reproduce, modify, adapt, publish, translate, distribute, and incorporate such Feedback into any product or service without any obligation, compensation, restriction, or attribution to you. Feedback you provide is not User Content and is not subject to any confidentiality obligation on the part of the Company.

Section 16: Contact Information and Effective Date

16.1 Contact Information

If you have questions, concerns, or requests relating to these Terms, the App, or your rights under these Terms, you may contact the Company at:

Mautonce LLC

980 N Michigan Ave, Ste 1090

PMB 108751, Chicago, IL 60611, United States

Email: LTTR@mautonce.com

Web: https://www.lttr.now/helpdesk

Because the app does not maintain user accounts, the email and web form above are the designated channels for legal and user inquiries. Mautonce will make commercially reasonable efforts to respond to written inquiries within a reasonable time, but does not guarantee a response to all submissions.

16.2 Platform-Specific Contacts

For questions related to billing, purchases, refunds, or account management, you must contact the applicable platform provider directly:

• Apple App Store: support.apple.com
• Google Play Store: support.google.com/googleplay

Mautonce does not process payment transactions and cannot issue refunds on behalf of any platform provider.

16.3 Law Enforcement and Legal Process

Requests for legal process, subpoenas, court orders, or governmental inquiries should be directed in writing to the Company at the mailing address in Section 16.1, Attn: Legal Department. You acknowledge that, given the App's no-account, no-server architecture, the Company has extremely limited data in its possession that could be responsive to such requests. See Section 4.2 (Anonymous Diagnostic and Analytics Data) for a description of the limited anonymous data the Company retains.

16.4 Effective Date

These Terms of Use are effective as of July 10, 2026 and supersede all prior versions of these Terms.