Notation turns your chess games into a personal coaching report.
Import your Lichess or Chess.com games, or play against Stockfish, Fairy-Stockfish, or Rodent IV directly in the app. Every game gets full engine analysis — move-by-move evaluation, mistake classification, and a weakness profile that tracks your recurring patterns across all your games.
Works with Chessnut Air and Chessnut Move boards for over-the-board play with full analysis.
What you get:
- Personal weakness profile (your recurring mistake patterns across all games)
- Blunder heatmap (which squares and pieces cost you the most)
- Opening performance breakdown (win rate and accuracy per opening, as White and Black)
- Positional tendencies (castling timing, pawn structure, outpost usage, open files)
- Playing style classification
- Exportable PDF coaching report
- 60+ interactive lessons
- No ads, no subscription, no account required
Ratings & Reviews
5.0
out of 5
1 Ratings
With more users come more edge case bugs. PGN file handling is more robust. Engine bugs squished.
Few foundations laid for some fun new features.
Version 2.2.5
The developer, Darren Cox, 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.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Darren Cox
Size
692.4 MB
Category
Board
Compatibility
Requires iOS 18.6 or later.
iPhone Requires iOS 18.6 or later.
iPad Requires iPadOS 18.6 or later.
Mac Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.