Terms of Service

Last updated: August 10, 2026

1. Acceptance

These Terms of Service ("Terms") are an agreement between you and We Sell Things LLC, a Wyoming limited liability company with its registered office at 30 N Gould St Ste R, Sheridan, WY 82801, United States ("we", "us"), which operates Naturalingo. By creating an account, by ticking the agreement box at sign-up, or by otherwise using the app — including guest mode without an account — you accept these Terms and our Privacy Policy. If you do not agree, do not use Naturalingo.

Sections 4 and 5 explain how your content, including private messages to other users, is processed by third-party AI providers and that messages are not end-to-end encrypted.

These Terms include an "as is" disclaimer of warranties (Section 14), a limitation of our liability (Section 15), an indemnity you give us (Section 16), and — in Section 17 — an agreement to resolve disputes by individual binding arbitration together with a waiver of class actions and jury trials. Please read those sections before you accept.

2. Eligibility

You must be at least 13 years old, or the higher minimum age of digital consent in your country (16 in much of the European Union), to use Naturalingo.

If you are under 18, you may use Naturalingo only with the consent of a parent or legal guardian, who accepts these Terms on your behalf. The app lets you exchange messages with other users, including adults you do not know.

You may not use Naturalingo if applicable law bars you from doing so, or if you are subject to sanctions or export restrictions that apply to us or to our AI providers. We may ask you to confirm your age and may suspend accounts we reasonably believe belong to underage users.

3. Your Account

You are responsible for keeping your sign-in credentials confidential and for all activity under your account. Tell us at support@ardaventures.me if you suspect unauthorised access.

One person, one account. Sharing accounts, creating them by automated means, and impersonating another person or brand are prohibited. We may reclaim display names.

4. AI Processing of Your Content

Most of Naturalingo runs on third-party AI providers. These features send your content to them over the internet: AI chat and custom AI characters, grammar and spelling correction, translation and vocabulary hints, text-to-speech, voice transcription, flashcard and example generation, answer checking, fluency scoring, language detection, and automated content moderation. What is sent is the text you type, the voice recordings you make, the instructions you write for custom AI characters, and the language settings needed to interpret them.

This includes the private messages you exchange with other users. When you send or receive a direct message, its text may be sent to an AI provider to produce grammar corrections, to translate it, to generate vocabulary hints, to produce the translated preview inside a push notification, and to screen it for prohibited content. Posts, comments, and captions are screened the same way before they are published.

We route these requests to one or more providers — currently OpenAI, Google (Gemini), Groq, and Cerebras — and may add, change, or replace providers at any time. They operate servers outside your country, including in the United States.

Your content is therefore also subject to those providers' terms and usage policies, in addition to these Terms. You agree not to submit anything through Naturalingo that their policies prohibit. A provider may refuse, filter, or truncate a request, may retain content for a limited period for abuse monitoring, and may suspend or change its service, any of which can make a feature fail. We do not control their systems and are not responsible for their decisions.

We ask our providers not to use this content to train their models, and we do not send your name, email address, or account identifier with AI requests, but we cannot audit a third party's internal practices. This processing is part of providing Naturalingo — if you do not want it, do not use the app.

5. Messages Are Not End-to-End Encrypted

Naturalingo does not offer end-to-end encryption. Traffic between your device and our servers is protected in transit by TLS, but your messages are stored on our servers in readable form.

Authorised personnel can access them where necessary to operate the service, investigate an abuse report, provide support, diagnose a fault, or comply with a valid legal request, and automated systems — including the AI providers described in Section 4 — process them routinely.

Do not send passwords, payment card or bank details, government identity numbers, health information, or other sensitive personal data through the app. Anyone you message can copy or screenshot what you send, and deleting a conversation cannot remove copies they already have or residual copies in backups.

6. AI Output

AI output is generated by statistical models. It can be wrong, out of date, incomplete, biased, or offensive, and can state incorrect things confidently. Corrections, translations, and fluency scores in particular may be inaccurate — treat them as practice material, not as authority.

Do not rely on AI output for medical, legal, financial, immigration, or safety decisions, or for translations where accuracy matters, such as contracts, medical instructions, or official documents. AI characters are software: they are not real people, hold no qualifications, and are not a crisis service. In an emergency, contact your local emergency number.

Output is produced on demand and is not unique — other users may receive similar output from similar prompts. To the extent we hold rights in output generated for you, we assign them to you. We do not represent that output is free of third-party rights or fit for commercial use.

7. Your Content

You keep ownership of what you create: messages, posts, comments, flashcards, custom AI character definitions, profile information, and voice recordings ("Your Content").

You grant us a worldwide, non-exclusive, royalty-free licence to host, store, reproduce, transmit, adapt, translate, and display Your Content, and to transmit it to the AI providers described in Section 4, as needed to operate and support the service and to deliver your content to the people you send it to. For content you publish — public posts, publicly shared AI characters, and your leaderboard display name and avatar — the licence also covers showing it to other users. It ends when you delete the content or your account, except for copies already delivered to others and residual backup copies.

You confirm that you hold the rights to Your Content and that it infringes no one's rights and breaks no law. You are solely responsible for it and for the consequences of sharing it.

If you create a custom AI character, you are responsible for the instructions you write and for what a character you publish produces. Characters may not impersonate a real person, be designed to produce prohibited content, or be designed to bypass an AI provider's safety systems. We may review, refuse, remove, or restrict any content or character at our discretion, and are not obliged to store it.

8. Acceptable Use

You agree not to:

• Harass, threaten, defame, stalk, or send unsolicited sexual content to other users.

• Post or send content that is illegal, sexually explicit, sexualises minors, promotes hatred against protected groups, glorifies violence or self-harm, or infringes intellectual-property rights.

• Solicit money, promote earning or investment schemes, advertise, spam, phish, or impersonate a person or organisation.

• Upload malware, or probe, overload, reverse engineer, or bypass rate limits, quotas, paywalls, or authentication.

• Access, scrape, or bulk-download the service by automated means, resell access to it, or use the service or its output to build, train, or evaluate a competing AI model.

• Try to make an AI feature ignore its safety limits, or use it to generate content that breaks these Terms or an AI provider's usage policy.

• Collect other users' personal data, or record or republish conversations without consent.

We may remove content, limit features, suspend, or permanently terminate accounts that break these rules, with or without notice, and may report unlawful activity to the authorities.

9. Other Users and Safety

We have zero tolerance for objectionable content and abusive users. Public posts and comments are screened automatically before publication, and messages may be screened as described in Section 4. Automated screening is imperfect and is not a guarantee.

You can report content or a user, and block a user, directly in the app; blocking stops messages between you. You can also write to support@ardaventures.me.

We aim to review every report and to remove violating content and eject the offending user within 24 hours.

We do not verify identity, age, or anything a user says about themselves, and we do not run background checks. You interact with other users at your own risk, so be careful with personal details such as your address, workplace, phone number, or financial information. Any decision to meet someone in person is yours alone, and we are not responsible for the conduct of any user.

10. Subscriptions and Credits

Naturalingo offers a free tier with usage limits, including message and AI quotas, and paid premium subscriptions. Prices, quotas, trial availability, and tier contents are shown in the app and may change for future billing periods.

Purchases are billed by the Apple App Store or Google Play under their own terms and processed through RevenueCat. Subscriptions renew automatically at the then-current price unless cancelled at least 24 hours before the end of the current period in your platform account settings, and a free trial converts to a paid subscription on the same basis. Deleting the app does not cancel a subscription.

Refunds are handled by Apple or Google under their policies; we generally cannot issue them directly. Where mandatory consumer law gives you a withdrawal or cancellation right, that right is unaffected.

Referral credits, message credits, and XP have no cash value, are not transferable or refundable, and may be changed or withdrawn, including where we detect referral abuse such as self-referral or fake accounts. If we terminate an account for breaching these Terms, we may withdraw premium access without refund to the extent the law allows.

11. Intellectual Property

Naturalingo — its name, logo, design, software, lesson content, and prompts — belongs to us or our licensors. We grant you a personal, limited, non-exclusive, non-transferable, revocable licence to use the app on devices you own or control for your own non-commercial language learning.

You may not copy, modify, distribute, sell, lease, sublicense, or create derivative works from any part of the service, or remove any proprietary notice, except where such a restriction is prohibited by law.

If you believe content on Naturalingo infringes your rights, write to support@ardaventures.me describing the work and where it appears. We remove infringing content where appropriate and may terminate repeat infringers. If you send us feedback or suggestions, we may use them freely without any obligation to you.

12. Privacy and Third Parties

Our Privacy Policy explains what we collect, why, and how long we keep it, and forms part of these Terms. Your data, including content submitted to AI features, may be processed in countries other than your own, including the United States.

Naturalingo also relies on Apple and Google for sign-in and payments, Firebase for push notifications, Cloudflare for storage, Sentry for crash diagnostics, Mixpanel for analytics, Resend for email, and RevenueCat for subscriptions, each governed by its own terms. We keep technical records of AI usage for billing, quota enforcement, and abuse prevention.

13. Termination

You can delete your account at any time from Settings → Account → Delete Account. Deletion is irreversible and does not cancel a subscription bought through Apple or Google — cancel that in your platform account settings.

We may suspend or terminate your access, remove your content, or restrict features immediately and without notice if we reasonably believe you have breached these Terms, if your use exposes us, our providers, or other users to legal or security risk, or if the law requires it.

We may also discontinue Naturalingo on reasonable notice. The disclaimers, limitation of liability, indemnity, arbitration agreement, class action waiver, and governing-law provisions survive termination.

14. Disclaimers

Naturalingo is provided "as is" and "as available", without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, accuracy, and non-infringement. It is an educational aid — not a certified translation service, a language qualification, or a substitute for professional advice — and we do not guarantee any learning outcome. Fluency scores, XP, streaks, and levels are software-generated estimates with no certification value and may be recalculated or reset.

We do not warrant that the service will be uninterrupted, secure, error-free, or available in your country; that AI output will be accurate or suitable; that content will be preserved without loss; or that other users will behave lawfully. Where the law does not allow these exclusions, they do not apply to you, and nothing here limits consumer rights that cannot be limited by agreement.

15. Limitation of Liability

To the maximum extent permitted by law, we are not liable for indirect, incidental, special, consequential, or punitive damages, or for lost profits, lost data, lost opportunity, business interruption, or reputational harm arising from your use of Naturalingo.

In particular we are not liable for the accuracy or consequences of AI output; for the conduct or content of other users; for the acts or outages of our AI providers or other third parties; for unauthorised access resulting from your own failure to keep credentials secure; or for events beyond our reasonable control.

Our total aggregate liability for all claims relating to the service is limited to the greater of the amount you paid us in the twelve months before the claim arose, or fifty U.S. dollars (USD 50). Nothing in these Terms excludes liability for death or personal injury caused by our negligence, for fraud, or for any other liability that cannot lawfully be excluded.

16. Indemnification

You agree to indemnify and hold harmless We Sell Things LLC, its members, officers, and personnel against any claim, loss, liability, or expense — including reasonable legal fees — arising from content you submit or send, your use or misuse of the service or of AI output, your breach of these Terms or of an AI provider's usage policy, your infringement of anyone's rights, or your interactions with other users. This applies to the maximum extent permitted by law and does not apply where the claim results from our own breach or negligence, or where consumer law does not permit it.

17. Governing Law, Arbitration, and Class Action Waiver

These Terms are governed by the laws of the State of Wyoming, United States, without regard to conflict-of-law rules, and the Federal Arbitration Act governs the interpretation and enforcement of the arbitration agreement below. Before starting formal proceedings, please write to support@ardaventures.me; we will try to resolve the matter informally within 30 days.

If a dispute is not resolved informally within 30 days, you and we agree that it will be settled by final and binding individual arbitration rather than in court, except as set out below. The arbitration is administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules, before a single arbitrator, and conducted in English. Where the AAA rules allow, it proceeds on the documents or by telephone or video; any in-person hearing takes place in the county where you live or another place we both agree on. We pay the share of the filing and arbitration fees that the AAA fee schedule allocates to us. The arbitrator decides all issues, including the scope and enforceability of this arbitration agreement, may award the same individual relief a court could, and the award may be entered in any court of competent jurisdiction. You understand that you are giving up the right to have these disputes decided by a judge or jury.

You and we agree to bring claims only in an individual capacity. Class, collective, consolidated, and representative actions are waived: neither of us may join claims with those of any other person, and the arbitrator may not preside over any form of class or representative proceeding or award relief to anyone other than the parties to that arbitration. If this waiver is held unenforceable for a particular claim, that claim — and only that claim — must proceed in court, and the rest of this section continues to apply to everything else.

Arbitration and the class action waiver do not apply to: a claim that qualifies for small-claims court, which either of us may bring there on an individual basis instead; a request for an injunction or other urgent relief to stop unauthorised use of, or infringement of the rights in, the service, which either of us may bring in court; or any dispute where mandatory law makes arbitration or the class action waiver unenforceable, in which case that dispute is handled as described in the next paragraph.

Where arbitration does not apply, you and we submit to the exclusive jurisdiction of the state and federal courts located in the State of Wyoming, and each of us consents to personal jurisdiction there. If you are a consumer, nothing in this section deprives you of the protection of mandatory consumer law in your country of residence, or of your right to bring proceedings before your local courts or consumer dispute body.

18. Apple App Store Users

These Terms are between you and us only, not with Apple. Apple is not responsible for Naturalingo or its content and has no obligation to provide maintenance or support for it.

If Naturalingo fails to conform to an applicable warranty, you may notify Apple and Apple will refund the purchase price. To the maximum extent permitted by law, Apple has no other warranty obligation, and any other claims, losses, liabilities, damages, costs, or expenses attributable to a failure to conform are our responsibility.

We, not Apple, are responsible for addressing any claim by you or a third party relating to Naturalingo, including product-liability claims, claims that it fails to meet a legal requirement, consumer-protection claims, and intellectual-property infringement claims.

You confirm that you are not located in a country subject to a U.S. Government embargo or designated as a terrorist-supporting country, and that you are not on any U.S. Government list of prohibited or restricted parties. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.

19. General

We may add, change, limit, or discontinue any feature, quota, AI model, or tier at any time, and some features are offered as beta. We will give reasonable notice of a change that materially reduces a paid feature you are actively paying for.

We may update these Terms. Material changes will be announced in the app or by email before they take effect, and the date above will change. Continuing to use Naturalingo after that means you accept the updated Terms.

If a provision is unenforceable, the rest remains in force. Our failure to enforce a provision is not a waiver of it. You may not assign these Terms; we may assign them to a successor in a merger, acquisition, or sale of assets. These Terms and the Privacy Policy are the entire agreement between us about Naturalingo.

We are not liable for failure to perform caused by events beyond our reasonable control, including outages at our hosting, network, or AI providers. We may send you notices in the app, by push notification, or to the email address on your account.

20. Contact

Naturalingo is operated by We Sell Things LLC, 30 N Gould St Ste R, Sheridan, WY 82801, United States. Questions about these Terms, privacy questions, safety reports, and account support: support@ardaventures.me.