ChessMentor

If you'd like to clear your stats, ratings, puzzle-solving history, or lesson streak, open ChessMentor, navigate to the settings page, and scroll down to the bottom. Tap on "Reset all progress" and confirm. This action will permanently erase all local storage progress and cannot be undone.

Not for learning or playing. All chess engines, puzzles, board themes, and educational content are packaged directly inside the app, so you can practice anywhere—even in airplane mode. You only need internet access to start or restore a subscription, use Game Center leaderboards, download app updates, or send support emails.

ChessMentor uses a Glicko/Elo rating calculation system. When you solve a puzzle correctly, your puzzle rating increases based on the puzzle's difficulty. If you get it wrong, your rating will decrease. We do not track or send these ratings to any external database; they are saved securely on your device.

Currently, because ChessMentor does not require account creation or internet connection, all your Streaks, board options, and puzzle progress are kept locally on the device you are using. They will not sync to another iPhone or iPad.

ChessMentor Premium is an optional auto-renewable subscription that unlocks the full lesson curriculum, the complete puzzle library, all computer difficulty levels, and the endgame trainer. It is available monthly or annually, each with a 3-day free trial. The app remains usable without a subscription.

Subscriptions are managed by Apple, not by us. On your device, open Settings, tap your name at the top, then tap Subscriptions and select ChessMentor to cancel. Cancel at least 24 hours before the end of the current period to avoid being charged for the next one. Your Premium access continues until the end of the period you have already paid for.

Open the ChessMentor Premium screen and tap "Restore Purchases", making sure you are signed in with the same Apple Account you used to subscribe. This also applies after reinstalling the app or setting up a new device. If Premium still does not unlock, email us and we will help.

All purchases are processed by Apple, so refunds are handled by Apple under its own policies and we cannot issue them directly. You can request a refund at reportaproblem.apple.com using the Apple Account you purchased with.

Yes. ChessMentor contains no ads, no trackers, no sign-ups, and no chat or user-generated content. It is suitable for chess learners of all ages, including children under 13. Parents who want to prevent in-app purchases or turn off the Game Center leaderboard can do so in Screen Time → Content & Privacy Restrictions.