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azooKey vs AquaSKK: catalog facts
azooKey	AquaSKK
Best for: Typing Japanese on a Mac with an open-source input method	Best for: Japanese typists on macOS who want explicit control over kana-kanji conversion
Free Free and open source.	Free Free and open source.
macOS	macOS
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	Predictable conversion without morphological analysis Open source with build instructions All 3 strengths for AquaSKK Predictable conversion without morphological analysis Open source with build instructions Works offline
macOS only Magic Conversions depend on an LLM and are optional	SKK input style takes time to learn macOS only
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for azooKey github.com/azooKey/azooKey-Desktop Catalog checked October 1, 2026	Official website Full listing and sources Sources for AquaSKK github.com/codefirst/aquaskk Catalog checked October 1, 2026

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