Chessmirror – Chess Trainer
Turn your blunders into drills
Free · Designed for iPad. Not verified for macOS.
Chessmirror turns the moves you got wrong into the positions you practise, so the same mistake does not stand in your next game.
PHOTOGRAPH A BOARD
Point the camera at a real board, a book diagram or a screenshot. Chessmirror reads the position on the device, lets you correct any piece, the side to move and castling rights, and opens it as a game.
PLAY WITH NO SLIPS
Play against Stockfish 18, built into the app, at a strength you choose. With No Slips on, a move that gives away too much is handed back to you before it is played — and written down, so you meet that position again.
A MISTAKE BOOK THAT WRITES ITSELF
Every costly move becomes an entry: one position, however many games it turned up in, with what you played and what it cost in winning chances. Import your games from lichess or Chess.com by username, or paste a PGN or FEN, and have every move scored locally.
A DAILY THAT KNOWS WHAT IS DUE
Practice is scheduled by spaced repetition (FSRS). Each day's queue holds the positions that are due and a few new ones. Play the move, get a plain verdict — passed or not — and play on if you want to.
FOUND FOR YOU
Mates and tactics the engine found in your own games are collected into sets. Tap the heart on any position to keep it in your favourites.
PRIVATE BY DESIGN
• Recognition and analysis run on your device. No account, no ads, no tracking.
• Games are plain PGN files in your own iCloud Drive, visible in the Files app.
• The network is used only when you ask to import games from a chess site.
Also: a face-to-face mode for over-the-board play on one phone, an advantage bar, dark mode, iPad layouts, and eight languages — English, Simplified Chinese, Japanese, Korean, French, German, Spanish and Portuguese.
Chessmirror is free software under the GPLv3. Source code: https://github.com/sunfmin/chessmirror
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 凤民 孙, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 凤民 孙
- Size
- 122 MB
- Category
- Board
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
English and 7 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 FENGMIN SUN
