Terms of Service

Last updated: March 27, 2026

1. What is TeachBack

TeachBack is an AI-powered learning tool that enables students to explain topics to an AI persona (like Lumi or Don) and receive evaluation. The service is operated by Yam Meir (hereinafter "we" or "TeachBack").

2. Acceptance of Terms

By using TeachBack, you agree to these terms. If you do not agree - do not use the service.

3. Registration and Account

• Registration is through a Google account only.
• You are responsible for the security of your Google account.
• One account per user.
• Use of your account by another person on your behalf is your responsibility.

4. Minimum Age

The service is intended for users aged 16 and above. By using the service, you confirm that you are at least 16 years old.

5. Acceptable Use

Allowed:

• Uploading personal study materials for learning purposes
• Using all service features within quota limits

Prohibited:

• Uploading material that infringes third-party copyrights (unless fair use for learning)
• Attempting to extract system instructions or inject instructions through study materials
• Using the service in a way that disrupts other users
• Creating multiple accounts to bypass quota limits
• Using the service for illegal purposes

6. Intellectual Property

• Your content: Study materials you upload remain yours. We do not take ownership of your files.
• Our content: The user interface, design, code, prompts, personas (Lumi, Don), and the TeachBack brand belong to us.
• Learning outputs: Evaluations, transcripts, and scores created during use are accessible to you through the app. We reserve the right to use aggregated data (anonymous, non-personally identifiable) to improve the service.

7. Service Provided "As Is"

We do not guarantee:

• That the service will be available 24/7 without interruptions
• That AI evaluations will be 100% accurate
• That the service will continue to exist forever
• That results will improve your academic grades

AI evaluations are a tool only - they are not a substitute for a teacher, lecturer, or professional academic counseling.

8. Limitation of Liability

To the extent permitted by law:

• We will not be liable for direct or indirect damages arising from use of the service.
• We will not be liable for loss of study materials (files are processed in memory and not stored).
• We will not be liable for academic grades - the service is a tool, not a guarantee of success.

This limitation does not apply to damages caused by our gross negligence or willful misconduct, or to any liability that cannot be excluded under applicable law.

9. Changes to Service

We reserve the right to:

• Modify, suspend, or discontinue the service at any time.
• Change quota limits (currently: 3 voice sessions per day, 50 text sessions per month).
• Update these terms - material changes will be accompanied by notification.

10. Future Monetization

The service is currently free. We reserve the right to offer paid plans in the future. If so, you will be notified in advance.

11. Account Closure

• You may request account closure and data deletion at any time via privacy@teachback.app.
• We reserve the right to close accounts that violate these terms.

12. Governing Law

• These terms are subject to the laws of the State of Israel.
• Any dispute will be adjudicated in the competent courts of Tel Aviv-Jaffa.

13. Contact