Mobile Maia

Mobile Maia is an offline-first chess app built around Maia-3, a human-like chess model developed by the University of Toronto Computational Social Science Lab.

Play against Maia at a selected rating without creating an account or connecting to a server. The Maia-3 model and Stockfish are bundled with the app, so games and analysis remain on your device.

Features include:

• Play as White, Black, or a random side


• Maia ratings from 800 to 2200, plus a custom rating


• Unlimited play, clock presets, and custom time controls


• Human-like move timing and adjustable Temperature and Top-P


• Single or multiple premoves, with an optional 100 ms penalty


• Takebacks, endgame draw offers, rematches, and automatic game restoration


• Experimental Chessnut Go play with LEDs, sounds, battery status, reconnect recovery, and phone continuation


• An analysis board with FEN and PGN import and export


• A graphical position editor and persistent analysis variations


• Offline Stockfish evaluation and Maia move comparison


• Fast, Balanced, or Thorough full-game analysis


• Full-game accuracy scores and a navigable evaluation graph


• Brilliant, Good, Interesting, Dubious, Mistake, and Blunder move classifications


• Two Stockfish suggestions and visible Maia/Stockfish agreement


• Lichess-style material difference beside each player


• Offline opening names and ECO codes from the Lichess opening database


• Historical clocks and timed PGN export with standard clock annotations


• PGN export with variations and game metadata

Mobile Maia is independently developed free software. Its source code is available under the GNU Affero General Public License v3.0 only.

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