Mobile Maia App
Mobile Maia is a free, open-source Android chess app for playing against Maia-3, a human-like model from the University of Toronto Computational Social Science Lab, and analysing games alongside Stockfish.
Everything runs on your device: no account, subscription, ads, or Internet connection is needed. The Maia-3 79M model, Stockfish 19 Light, opening database, saved games, and analysis are available offline.
Play:
- Choose White, Black, or a random side and a Play Maia rating from 600 to 2600
- Use unlimited play, clock presets, or custom minutes and increment
- Adjust human-like move timing, Temperature, and Top-P
- Use single or multiple premoves, with an optional 100 ms penalty
- Take back moves, offer endgame draws, play rematches, and restore unfinished games
- Enable optional move sounds and haptic feedback
- Find recent games by player side, Maia rating, result, and date
Explore and learn:
- Compare move probabilities from two Maia ratings alongside two Stockfish suggestions
- See agreement between the engines with arrows on the board
- Run Fast, Balanced, or Thorough full-game analysis; Fast is the default for new or reset settings
- Review accuracy, the evaluation graph, and Brilliant, Good, Interesting, Dubious, Mistake, and Blunder annotations
- Import FEN or PGN, edit positions, and build persistent nested variations
- Continue from an analysed position with a choice of side, playing strength, and clock for that game, without changing Home preferences
- Look up offline opening names and ECO codes
- Save and share PGN with variations, annotations, and historical clocks
Experimental Chessnut support includes board LEDs, sounds, battery status, reconnect recovery, and the option to finish a board game on the phone. Board play supports unlimited games from the standard starting position; USB and Analysis Board input are not supported.
The bundled offline model makes the universal APK approximately 435 MiB. Mobile Maia is an independent community project under AGPL-3.0-only and is not an official Maia Chess, Lichess, Stockfish, or Chessnut application.
