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macSKK vs azooKey: catalog facts
macSKK	azooKey
Best for: SKK users who type Japanese on a Mac	Best for: Typing Japanese on a Mac with an open-source input method
Free Free and open source.	Free Free and open source.
macOS	macOS
SKK-style Japanese input on modern macOS Universal Binary for Apple Silicon and Intel All 3 strengths for macSKK SKK-style Japanese input on modern macOS Universal Binary for Apple Silicon and Intel Actively developed with a long commit history	Neural kana-kanji conversion with Zenzai Live conversion while typing All 4 strengths for azooKey Neural kana-kanji conversion with Zenzai Live conversion while typing Personalization that adapts to your writing Open source and written in native Swift
Requires macOS 13.3 or later Tested only on Apple Silicon All 3 limitations for macSKK Requires macOS 13.3 or later Tested only on Apple Silicon Documentation mostly in Japanese	macOS only Magic Conversions depend on an LLM and are optional
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	Not stated if an account is needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for macSKK github.com/mtgto/macSKK Catalog checked October 1, 2026	Official website Full listing and sources Sources for azooKey github.com/azooKey/azooKey-Desktop Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.