These terms apply to the MentoChess app for Android and the web app at mentochess.com (together, “the app”), published by Derovest (“we”, “us”), a partnership firm in Tamil Nadu, India. By using the app you agree to these terms. If you don't agree, please don't use the app.
What the app does
MentoChess downloads your public games from Chess.com and Lichess (and, if you choose, your public FIDE profile), analyses them with the Stockfish chess engine, and gives you coaching, training and reports based on them. All features are currently free.
Your account
You can use the app without an account. An account (signed in with a code sent to your email) is needed for phone and web sync, backup and the AI coach. Keep access to your email secure; you're responsible for activity on your account. You must be at least 13 years old to create an account. You can delete your account at any time in the app or at mentochess.com/delete-account.
Acceptable use
- Use the app only for your own chess improvement and lawful purposes.
- Don't use the app, or its engine analysis, to cheat in games or tournaments, or to break the fair-play rules of Chess.com, Lichess, FIDE or any other organiser.
- Don't try to break, overload, reverse-engineer or get unauthorised access to the app or its servers, or misuse the AI coach (for example to generate content unrelated to chess).
- Only link usernames and FIDE IDs that are yours, or that you have a legitimate reason to study, such as preparing for an opponent from their public games.
We may limit or close accounts that break these rules.
Coaching and AI content
Engine evaluations, coaching notes and AI coach replies are generated automatically. They are meant to help you learn and may sometimes be wrong or incomplete. The AI coach has a monthly fair-use limit. Don't rely on the app for anything other than chess training.
Third-party services
The app uses public data from Chess.com, Lichess and FIDE, which are not affiliated with MentoChess, and services described in our privacy policy. Their availability and terms are outside our control. Chess.com, Lichess and FIDE are trademarks of their respective owners.
Our content and open-source software
The app, its design and its coaching content belong to Derovest. Your games and your notes remain yours. Stockfish is free software licensed under the GNU General Public License v3; its licence and source are available as described in the app.
Purchases
MentoChess currently has no purchases. If we introduce optional subscriptions, they will be sold and billed by Google Play under Google Play's terms, and we will update these terms before they start.
Disclaimer and liability
The app is provided “as is” and “as available”, without warranties of any kind, to the extent allowed by law. We don't guarantee that it will always be available, error-free, or that your data will never be lost; keep your account signed in to back it up. To the extent allowed by law, Derovest is not liable for indirect or consequential losses arising from use of the app. Nothing in these terms limits rights you have under consumer protection laws that cannot be excluded.
Changes
We may update the app and these terms. If we make important changes, we'll update the date at the top of this page and, where appropriate, tell you in the app. Continuing to use the app after changes means you accept them.
Governing law and contact
These terms are governed by the laws of India, and the courts of Erode, Tamil Nadu have jurisdiction, subject to any rights you have under the laws of your own country. Questions: hello@derovest.com.