The complete chess study workstation for Apple users
Everything you need in one powerful app
Game review, engine analysis, opening repertoire, and training — a complete chess study workstation built natively for Apple platforms.

Game Database
Import, organize, and annotate your PGN games. Add comments, symbols, arrows, and highlights to every move — like a modern ChessBase built for Mac.

Engine Analysis
Bundled Stockfish runs locally on your machine. Get real-time evaluation, best move suggestions, and full principal variations — no cloud needed.

Opening Repertoire
Build and drill your opening repertoire with spaced repetition. The app tracks your accuracy and schedules positions for review at optimal intervals.

Game Review & Training
Master the endgame, solve puzzles, and review your games with automated insights. Train with targeted exercises designed for your skill level.

Lichess Integration
Seamlessly sync your Lichess games for review and repertoire building. Keep all your games in one place, automatically updated.

AI Integration
Connect Claude, Codex, or any MCP-compatible AI assistant to read your games, analyze positions, add comments, draw arrows, and navigate moves in real time.

Native & Cross-Platform
A truly native experience. Sync your repertoire and analysis across macOS, iOS, and iPadOS with iCloud support.
Your Chess Workstation Awaits
Free to download with engine analysis, opening tree, Lichess integration, and workouts included. Unlock premium with a one-time purchase for unlimited imports, position search, and external databases.
