macOS workstation + iPhone & iPad companion
Deep Go analysis on your own Mac.
Run KataGo locally on Apple Silicon. Review SGF libraries in a proper desktop workstation. Take the same library on your iPhone or iPad through iCloud sync. No accounts, no servers, no game data ever leaves your devices.
Version 1.1.1 / 32 MB / macOS 14.0
Notarized by Apple. Updates delivered via Sparkle. iOS / iPadOS version is a free universal download on the App Store.
Candidate lines, ownership heat, and visit budget in one view.
Black winrate
54.3%
Top move
Q16
Model
b18 / Metal
Ownership swing
+7.1
A proper workstation for review.
Library, board, candidate lines, and analysis context all stay in one frame so a review session feels like analysis, not tab management.
Candidate lines, ownership heat, and visit budget in one view.
Black winrate
54.3%
Top move
Q16
Model
b18 / Metal
Ownership swing
+7.1
Library management for long study histories
Board-plus-analysis review with candidate lines and winrate context
iCloud sync so deep Mac study stays available on iPhone and iPad
KataGo, running on your own Metal GPU.
No round-trips to a cloud server. The strongest open-source Go engine evaluates positions on Apple Silicon, with visit budgets you can push as deep as your machine allows.
Visits per second under the same local review workload, showing why Metal turns a Mac into a serious Go study machine.
KataGo with local Metal acceleration on Apple Silicon.
Fast b18 sessions for iteration, heavier b40 sessions when you want more depth.
Analysis runs on your machine. No SGFs or board state leave your Mac.
One library across your devices.
The Mac runs deep analysis. iPhone and iPad keep the library close when you are away from the desk. Sync uses your own iCloud account, nothing else.
Free for Mac. Free on the App Store.
Direct download for Mac, signed and notarized by Apple. Universal iOS and iPadOS app on the App Store. All three platforms share the same iCloud library.
Version 1.1.1 / 32 MB / macOS 14.0