Terms of Service

Last updated: 27 June 2026

These Terms of Service (“Terms”) are a binding agreement between you and Daniil Diachenko, Praça São João Bosco, 1350-296 Lisbon, Portugal (“Mento”, “we”, “us”, or “our”), and govern your use of the Mento mobile application and related services (the “Service”).

Please read these Terms carefully. By creating an account or using the Service, you agree to these Terms and to our Privacy Policy and Acceptable Use Policy. If you do not agree, do not use the Service.

1. Eligibility

You must be at least 16 years old (or the age of digital consent in your country, if higher) and able to form a binding contract to use the Service. By using the Service, you represent that you meet these requirements.

2. Your account

You sign in to Mento using Google authentication through our provider. You are responsible for maintaining the security of the account you use to access Mento and for all activity that occurs under your account. Notify us promptly at [email protected] if you suspect unauthorized use.

3. The Service

Mento is an AI “second memory” journaling service. You can write journal entries, record voice notes, and converse with an AI companion that can search your entries and past conversations, generate summaries and prompts, and create entries on your behalf when you ask. Features may change, improve, or be discontinued over time.

4. AI-generated content — important disclaimer

The Service uses artificial intelligence to generate responses, summaries, and suggestions. AI output can be inaccurate, incomplete, or misleading.

AI responses are not professional advice. Mento does not provide medical, mental-health, psychological, legal, financial, or other professional advice, and its output is not a substitute for consultation with a qualified professional.

If you are experiencing a medical or mental-health emergency, or are in crisis, contact your local emergency services or a qualified professional immediately. Do not rely on Mento in any situation where inaccurate output could lead to harm.

You are responsible for evaluating and verifying any AI output before relying on it.

5. Your content

You retain all ownership rights in the content you create in Mento, including your journal entries, voice notes, and messages (“Your Content”).

You grant us a limited, non-exclusive, worldwide, royalty-free license to host, store, process, transmit, and display Your Content solely to operate and provide the Service to you — for example, to generate embeddings, run searches, produce AI responses and summaries, and transcribe your audio, including by using the third-party processors described in our Privacy Policy. This license exists only for as long as needed to provide the Service and ends when you delete the relevant content or your account, subject to routine backup retention.

We do not claim ownership of Your Content and do not use it to train our own or third parties’ AI models.

6. Acceptable use

Your use of the Service must comply with our Acceptable Use Policy. You are solely responsible for Your Content and for ensuring you have the right to submit it.

7. Subscriptions and payments

Mento may offer paid subscriptions that unlock additional capabilities and higher usage limits.

• Billing through Apple. Subscriptions are sold as auto-renewable in-app purchases and are billed to your Apple ID account through the App Store.
• Auto-renewal. Your subscription automatically renews for the same period unless you cancel it at least 24 hours before the end of the current period. Your Apple ID account is charged for renewal within 24 hours prior to the end of the current period, at the price for your selected plan.
• Managing and canceling. You can manage or cancel your subscription, and turn off auto-renewal, in your Apple ID account settings on your device. Once purchased, payment is non-refundable except as required by law or by Apple’s applicable refund policies; refunds are handled by Apple.
• Changes to plans and pricing. We may change subscription features and pricing on a prospective basis. Price changes do not affect the period you have already paid for, and material changes will be communicated as required by the App Store.

The standard Apple-mandated subscription terms and the Apple End User License Agreement also apply to in-app purchases.

8. Disclaimer of warranties

The Service is provided “as is” and “as available,” without warranties of any kind, whether express or implied, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be uninterrupted, secure, error-free, or that AI output will be accurate or reliable.

9. Limitation of liability

To the maximum extent permitted by law, Mento and its operators will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, profits, or goodwill, arising out of or related to your use of the Service. To the maximum extent permitted by law, our total liability for any claim relating to the Service will not exceed the greater of the amount you paid us for the Service in the 12 months before the claim, or USD 50. Some jurisdictions do not allow certain limitations, so some of the above may not apply to you.

10. Indemnity

You agree to indemnify and hold harmless Mento and its operators from any claims, damages, liabilities, and expenses arising out of Your Content or your violation of these Terms or applicable law.

11. Termination

You may stop using the Service and delete your account at any time. We may suspend or terminate your access if you violate these Terms or the Acceptable Use Policy, or where necessary to protect the Service or other users. Provisions that by their nature should survive termination (such as ownership, disclaimers, and limitations of liability) will survive.

12. Governing law and disputes

These Terms are governed by the laws of Portugal, without regard to its conflict-of-laws rules. The courts of that jurisdiction will have exclusive jurisdiction over disputes, except where mandatory local consumer- protection law grants you the right to bring proceedings in your place of residence.

13. Changes to these Terms

We may update these Terms from time to time. When we make material changes, we will update the “Last updated” date above and, where appropriate, notify you in the app. Your continued use of the Service after an update means you accept the revised Terms.

14. Contact us

Questions about these Terms? Email us at [email protected] or write to Daniil Diachenko, Praça São João Bosco, 1350-296 Lisbon, Portugal.