Terms of Use (User Agreement)

Effective date: 22 July 2026

This User Agreement (the "Agreement") governs the use of the TruthLens mobile application, the TruthLens browser extensions, and the truthlens.wiki website (collectively, the "Service"). By installing the application, creating an account, or using the Service, you confirm that you have read, understood, and accept the terms of this Agreement and our Privacy Policy. If you do not agree with any of the terms, stop using the Service and delete the application.

1. General provisions

1.1. About TruthLens. TruthLens is a service for automated, AI-assisted analysis of the credibility of information. The Service extracts factual claims from content submitted by the user (text, links, images, video, audio, documents), searches publicly available sources for evidence, and produces an evidence-based assessment with references to sources.

1.2. Legal status. The operator and rights holder of the TruthLens Service is Nazerke Saktapbergenova, an individual carrying out activities in accordance with the legislation of the Republic of Kazakhstan (the "Operator", "we").

1.3. Amendments. We may amend this Agreement. The current version is always available in the application (Settings → Terms of Use) and at truthlens.wiki. We will announce material changes in the application at least 30 days before they take effect. If you do not agree with a change, you may stop using the Service and terminate the Agreement before the change takes effect; for paid subscriptions, a materially adverse change entitles you to cancel the subscription for the following periods under the rules of the respective store. Use of the Service after the notice period constitutes acceptance of the amended Agreement. Amendments do not have retroactive effect.

2. Eligibility

2.1. Age. The Service is intended for users aged 13 and older. If you are under the age of majority in your jurisdiction, you may use the Service only with the consent of a parent or legal guardian. For users in the European Union under 16 years of age, the consent of a parent or guardian is required where national law so provides.

2.2. Legal capacity. By accepting this Agreement you represent that you have the legal capacity to enter into it.

2.3. Compliance with local law. You are responsible for ensuring that your use of the Service is lawful in your jurisdiction.

3. Account, registration, and security

3.1. Account. Full functionality of the mobile application requires signing in with Apple, Google, Huawei ID, or an email address and password; authentication is provided via Google Firebase Authentication. On iOS, a limited number of text and link checks (currently 5, one-time) are available before signing in, counted per physical device rather than per account (clause 4.2); camera, microphone, gallery, file, and YouTube checks, and use of the Android application, always require an account. Certain parts of the Service are available without registration in a limited mode: the browser extension operates using a technical (anonymous) session, and the public check on the truthlens.wiki website is available without an account with per-network limits. This Agreement applies to use of the Service both with and without an account.

3.2. Accuracy of data. You agree to provide accurate registration data and to keep it up to date.

3.3. Security. You are responsible for maintaining the confidentiality of your credentials and for all actions performed under your account. Notify us immediately at support@truthlens.wiki of any unauthorized use of your account.

3.4. One person — one account. Creating multiple accounts to circumvent the limits of the free tier is prohibited and may result in suspension of all related accounts.

3.5. Account deletion. You may delete your account and associated data at any time using the account deletion function in the application settings (where available) or by contacting support@truthlens.wiki from the email associated with the account. Deletion of the account terminates this Agreement in the part concerning your use of the Service.

4. The Service and free tier

4.1. Core functionality. The Service analyses user-submitted content: extracts verifiable factual claims, searches for evidence in publicly available sources, evaluates each claim, detects manipulative techniques, and produces an overall credibility assessment with a confidence scale and a list of sources.

4.2. Free tier. New accounts receive a limited number of free checks (currently 5 checks per account, one-time). On iOS, an additional limited number of text and link checks (currently 5, one-time) is available before you create an account, counted per physical device rather than per account (clause 3.1) — see the Privacy Policy, Section 1.6, for how this device count is kept. The Operator may change the size and terms of either free tier for new users. After the applicable free limit is exhausted, further use requires a Premium subscription.

4.3. Service changes. We are constantly developing the Service and may change, add, or remove features. We will strive to give reasonable notice of material reductions in functionality available to paying users.

5. Premium subscription and payments

5.1. Plans. A paid Premium subscription removes the limit on the number of checks and provides the extended features described on the paywall screen. Available plans: monthly (USD 9.99 per month) and annual (USD 99.99 per year). Actual prices in your currency are shown in the store interface before purchase and may vary by region and taxes.

5.2. Payment processing. Payments are processed exclusively by Apple (App Store) or Google (Google Play) under their terms. We do not receive or store your card or bank details.

5.3. Auto-renewal. Subscriptions renew automatically at the end of each paid period unless cancelled at least 24 hours before the end of the current period. You can manage and cancel the subscription in your App Store or Google Play account settings; deleting the application does not cancel the subscription.

5.4. Price changes. We may change subscription prices. For active subscribers, changes take effect no earlier than the next billing period and subject to the notification and consent rules of the respective store.

5.5. Refunds. Refunds for purchases made through the App Store or Google Play are made in accordance with the policies of the respective store. Where the store refunds a purchase, the corresponding Premium access is revoked. Nothing in this section limits your statutory withdrawal and refund rights under applicable consumer law.

5.6. Server-side entitlement. Premium access is granted and verified server-side after cryptographic validation of the purchase. Any attempts to obtain Premium access without payment are prohibited.

6. Nature of results. No advice

6.1. Analysis tool, not a final verdict. The results of the Service (verdicts, confidence scores, explanations, detected manipulations, source lists) are generated automatically using artificial intelligence models and public sources. They are a research and information tool, not an established fact, and not a final verdict.

6.2. No guarantee of accuracy. AI models can make mistakes; sources can be incomplete, outdated, biased, or contradictory. We do not warrant the accuracy, completeness, or timeliness of any result. Always verify important information independently using primary sources.

6.3. No professional advice. The results are not and shall not be construed as legal, medical, financial, investment, tax, or any other professional advice, nor as a determination of anyone's guilt, liability, or bad faith.

6.4. Probabilistic assessments of claims. Verdicts are probabilistic, automatically generated assessments of the consistency of a factual claim with publicly available evidence at the time of the check. They do not constitute assertions of fact about any person or organization, an accusation, or an official finding, and must not be presented as such.

6.5. Your decisions are your responsibility. Any decisions you make on the basis of the Service's results are made at your own risk. To the maximum extent permitted by law, the Operator bears no liability for the consequences of such decisions and for any use or publication of the results by the user.

6.6. Disputing a result. If you believe that a specific result is erroneous, or if a result concerns you or your organization and you consider it incorrect or harmful, send a notice to support@truthlens.wiki specifying the claim checked and the substance of the objection. We will review reasoned notices within a reasonable time (as a rule, within 14 days) and, where justified, will correct or remove the disputed result from the affected user history and take the objection into account in the operation of the Service.

7. User content and license

7.1. Ownership. You retain all rights to the content you submit for analysis (text, links, images, video, audio, documents).

7.2. License to the Operator. You grant the Operator a non-exclusive, worldwide, royalty-free license to process the submitted content solely for the purpose of providing the Service: transmitting it to the analysis pipeline (including third-party AI and search providers), creating transcripts and analysis results, and storing your check history in your account.

7.3. Deletion of uploads. Uploaded media files (images, video, audio, documents) are stored temporarily and are automatically deleted from the server after processing or upon expiry of a short technical retention period. Text of checks, transcripts, and results are stored in your history until you delete them.

7.4. Your responsibility for content. You represent that you have the necessary rights to submit the content for analysis and that such submission does not violate the law or the rights of third parties (including copyright and personal data of others). Do not submit content containing special categories of personal data of third parties (health, biometrics, and similar) without a lawful basis.

7.5. History deletion. You can delete your check history at any time in the application settings.

8. Acceptable use

8.1. It is prohibited to use the Service for:

• any unlawful purposes or in violation of the rights of third parties;
• submitting content whose processing is prohibited by law;
• harassing, defaming, or persecuting individuals, including using analysis results;
• creating automated mass request flows, scraping, load testing, or other interference with the operation of the Service;
• circumventing technical limitations, including the free-tier limits, including by creating multiple accounts;
• reverse engineering, decompiling, or extracting the source code of the application, except where expressly permitted by law;
• reselling, sublicensing, or providing the Service to third parties as a service of your own.

8.2. Consequences of violations. In the event of a violation, the Operator may restrict, suspend, or terminate access to the Service without compensation, and, in cases where this is required by law, notify competent authorities.

9. Indemnification

To the extent permitted by applicable consumer law, you agree to indemnify and hold the Operator harmless from documented claims, damages, and reasonable expenses (including legal costs) of third parties arising out of: the content you submitted; your publication or use of analysis results; or your breach of this Agreement. The Operator will notify you of such a claim and will not settle it without giving you a reasonable opportunity to state your position. This section does not apply to the extent a claim is caused by the Operator's own fault.

10. Intellectual property. Complaints

10.1. Rights of the Operator. The application, its design, trademarks, logos, software code, and analysis algorithms belong to the Operator or its licensors and are protected by intellectual property law. Except for the rights expressly granted by this Agreement, no rights to the Service are transferred to the user.

10.2. Copyright and other complaints. If you believe that content processed by the Service infringes your rights, send a notice to support@truthlens.wiki including: identification of the protected work or right, the location of the disputed content (for example, the checked link), your contact details, and a statement of the grounds. We will review reasoned notices and, where justified, will remove or restrict access to the disputed content. Notices to users are sent to the email associated with the account or displayed in the application.

11. Third-party services

11.1. The Service relies on third-party services, including Apple and Google platform services, Google Firebase (authentication, push notifications), AI providers (including Google Gemini and Groq), evidence search providers (including Tavily), and public sources (including YouTube). Their use is subject to the terms of the respective providers.

11.2. The Operator is not liable for the unavailability or changes of third-party services, including changes in Apple or Google policies that affect the operation of the Service.

12. Warranties and limitation of liability

12.1. "As is". The Service is provided on an "as is" and "as available" basis, without any express or implied warranties, including warranties of uninterrupted operation, freedom from errors, or fitness for a particular purpose.

12.2. Limitation of liability. To the maximum extent permitted by applicable law, the Operator shall not be liable for: the content and accuracy of analysis results and the consequences of their use (Section 6); loss of data as a result of technical failures or force majeure; actions of third parties who gained access to an account through the user's fault; inability to use the Service due to changes in third-party services; any indirect, incidental, or punitive damages, or loss of profit.

12.3. Liability cap. The aggregate liability of the Operator under this Agreement is limited to the amount actually paid by the user for the Service in the 12 months preceding the event giving rise to the liability, or, if nothing was paid, to the equivalent of USD 10. This cap and the exclusions in clause 12.2 do not apply to liability for intent or gross negligence, for death or personal injury, or to any other liability that cannot be excluded or limited under applicable law.

12.4. Consumer rights. Nothing in this Agreement limits the mandatory rights of consumers under applicable law.

12.5. Force majeure. The Operator is released from liability for non-performance caused by force majeure circumstances.

13. Term and termination

13.1. The Agreement applies from the moment you start using the Service and remains in force until terminated.

13.2. Termination by you. You may terminate the Agreement at any time by ceasing to use the Service and deleting the account (clause 3.5).

13.3. Termination by the Operator. The Operator may terminate the Agreement or discontinue the Service in whole or in part: (a) with at least 30 days' notice in the application or by email; or (b) immediately in the event of a material breach of this Agreement (Section 8). If the Service is discontinued or the Agreement is terminated other than for your breach, the unused part of a paid subscription period is refunded in accordance with the rules of the respective store or, where the store does not provide a mechanism, by the Operator on a pro-rata basis.

13.4. Survival. Sections 6, 9, 10, 12, 14, and 15 survive termination of the Agreement. Data processing after termination is governed by the Privacy Policy.

14. Governing law and disputes

14.1. Governing law. This Agreement is governed by the legislation of the Republic of Kazakhstan, without prejudice to the mandatory consumer protection and personal data protection rules that apply to you by virtue of the law of your country of residence.

14.2. Dispute resolution. The parties will first attempt to resolve any dispute through negotiations by contacting support@truthlens.wiki. If a dispute is not resolved within 30 days, it shall be referred to the competent court determined in accordance with applicable law, including mandatory consumer jurisdiction rules.

15. Miscellaneous

15.1. Severability. If any provision of this Agreement is held invalid, the remaining provisions remain in force.

15.2. Entire agreement. This Agreement and the Privacy Policy constitute the entire agreement between the user and the Operator regarding the Service.

15.3. Assignment. The Operator may assign its rights and obligations under this Agreement in connection with a reorganization or transfer of the Service, subject to preservation of the users' rights.

15.4. Prevailing language. This Agreement is drawn up in English; versions in other languages are provided for convenience. In the event of a discrepancy, the English version prevails to the extent permitted by the mandatory rules of your jurisdiction.

16. Contact

Operator: Nazerke Saktapbergenova

Email: support@truthlens.wiki

Website: truthlens.wiki