Chesstra Privacy Policy

Last updated: 2026-10-27

Summary

Chesstra does not sell your data. You sign in with Apple or Google (no password is created). Free players see ads from Google AdMob; Premium players see none. Your games, reviews, puzzle progress and settings are stored on your device, and your account, progress and online play are stored with Google Firebase, as described below.

Your account

You sign in with Sign in with Apple or Google Sign-In. We receive your account ID and, if you share them, your name and email address (Apple lets you hide your email). We use them only to sign you in and keep your progress across devices. You can sign out in Profile → Account, and delete your account and all its data in Profile → Settings → Delete my account and data. If you signed in with Apple, deleting your account also revokes Chesstra's access to your Apple ID.

Data stored on your device

Games you play or import, engine analysis, coach reviews, puzzle progress and rating, daily streak, and your settings. You can delete all of it at any time in Profile → Settings → Delete my account and data, or by uninstalling the app.

Online play, leaderboards, leagues and arenas

With your account (Google Firebase) we store your player name and avatar, your country (taken from your phone’s region setting when you sign up — no location access — and changeable in Profile), the country you signed up from, your Google profile photo if you signed in with Google (you can switch to an emoji avatar), whether you sign in with Apple or Google, your online games with friends and in arenas (moves, clocks and results), your friends list, your rating, Puzzle Rush best scores, weekly league points, arena scores and trophies, and your progress: XP and level, coins, items you own, season and quest progress. Coins are earned in the app and can’t be bought or exchanged for money. Your player name, avatar or photo, avatar frame, country, join date, rating and world rank, level, scores, trophies and league points are visible to other players. If you allow notifications, a push token is stored so we can tell you about challenges and moves. Data is stored with Google Cloud in India (Mumbai). You can delete your online account and this data at any time in Profile → Settings → Delete my data.

Chess.com

If you link a Chess.com username, the app downloads that account’s public profile, ratings and games from Chess.com’s public API. No password is used. Chess.com’s own privacy policy applies to data held by Chess.com.

Lichess

If you sign in to Lichess, an access token is stored in your device’s secure keychain and used only to talk to lichess.org (to play games, send challenges and import your games). The app also downloads public puzzles from Lichess. If you turn on “Your-move alerts”, the token is also stored on our server (never shown to anyone) so it can check every few minutes whether it’s your turn in a Lichess daily game or someone has challenged you; turning alerts off, signing out of Lichess or deleting your account removes it. You can revoke access at any time in your Lichess settings or by signing out. Lichess’s own privacy policy applies to data held by Lichess.

AI coach explanations (Premium)

When you tap “Explain my game”, or ask the coach a question (Premium), the game’s moves or the position on the board, a summary of the engine analysis, and your question and the conversation so far are sent to our server and to Anthropic (the provider of the Claude AI model) to write the answer. Your account ID is included so we can confirm your subscription and apply fair-use limits. We keep a daily request count for rate limiting and do not store the game content, questions or answers on our server. Anthropic processes this data under its commercial terms.

Purchases

Premium (monthly or yearly subscriptions, or a one-time Lifetime purchase) is paid through Apple or Google; we never see your payment details. We use RevenueCat to check whether you have Premium; it receives your account ID and your purchase records, not your name or payment details.

Advertising

Free players see ads from Google AdMob: a full-screen ad after finished games, Puzzle Rush runs and every few puzzles, ads shown as cards on some screens, a small banner while watching Lichess TV, and optional videos you can choose to watch for rewards (coins, a coach review, a streak freeze, or trying a style for a day). Ads never appear during a game, and Premium removes them. AdMob receives your device’s advertising identifier, IP address and app usage to show and measure ads. Ads are non-personalised: we don’t ask to track you across other apps, and we don’t use your iPhone’s advertising identifier for tracking. In the EEA and UK we ask for your consent first, as the law requires. See Google’s policy at policies.google.com/technologies/ads.

Crash reports

If the app crashes, a crash report (error details, app version, device model and operating system) may be sent to Sentry so we can fix the problem. It does not include your games or personal content.

Microphone and speech

Voice moves use your phone’s built-in speech recognition only after you tap the microphone button, and stop when it finishes listening. Depending on your phone, Apple or Google may process the audio under their own privacy terms. The app does not record or store audio.

Notifications

Daily reminders are scheduled on your device. For online games, arenas and Lichess alerts, if you allow notifications, your device’s push token is stored with your account and notifications are delivered through Expo’s push service and Apple or Google.

Children

Chesstra is not directed at children under 13 and does not knowingly collect personal information from them.

Contact

Questions or requests: info@navarisdigital.com