ProChess
A native chess app for macOS, built exclusively for Apple silicon Macs.
Play offline against Stockfish, play locally with a friend, and analyze your completed games.
No ads. No accounts. No distractions. Just chess.
Play Chess Against Stockfish
- Powered by Stockfish 19, one of the strongest chess engines available.
- Adjust engine strength and playing depth to match your level.
- Play as White, Black, or Random.
- Play timed games with preset or custom time controls.
- Play locally with a friend on the same Mac.
Analyze and Understand Your Games
- Review completed games with an evaluation bar that shows who is better at a glance.
- Compare your moves with the Stockfish’s best continuations for each position.
- Configure analysis depth and choose how many engine lines to display.
- Press Space during analysis to play Stockfish’s current top move and follow its recommended continuation.
- Step through your complete move history with ease.
- Create and explore variations to investigate mistakes and discover stronger plans.
- Highlight squares and draw arrows to annotate key moments.
- Copy complete games as PGN and any position as FEN.
ProChess Premium
ProChess Premium is an optional auto-renewable subscription that adds two complementary neural-network experiences:
- Play against Lc0, using a strong neural-network model trained on self-play games.
- Analyze positions and completed games with Lc0 for a different perspective from Stockfish.
- Choose from nine human-like Maia opponents rated 1100–1900.
- All engines and model files are included. Play and analysis run locally on your Mac, with no account or cloud processing.
US$1.99/month or US$14.99/year in the United States.
Local App Store pricing may vary.
The annual plan includes a 7-day free trial for eligible subscribers.
Founding price — keep the price of your plan while it remains active.
ProChess Premium is optional. Stockfish play and analysis, local two-player games, variations, annotations, and customization remain included for everyone.
Private, Offline, and Native
- Runs entirely offline—no internet connection required.
- No account creation or sign-in.
- Built natively for fast, responsive performance on Apple silicon.
Make It Yours
- Choose from multiple chessboard themes.
- Select your default annotation color.
- Adjust how board coordinates are displayed.
- Show or hide check and last-move highlights.
About the Developer
Misty Mountains Studio is an independent macOS software studio founded by a longtime developer and chess enthusiast. ProChess combines a passion for software craftsmanship with a love of the game, resulting in a clean, focused, and privacy-respecting chess experience.Designed and built in Colorado, USA.