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ATOK vs macSKK: catalog facts
ATOK	macSKK
Paid Sold as the ATOK Passport subscription with a free trial.	Free Free and open source.
Windows, macOS, Android, iOS	macOS
Conversion engine that adapts to your typing habits 63 optional genre dictionaries	SKK-style Japanese input on modern macOS Universal Binary for Apple Silicon and Intel
Subscription required after the trial Website and interface are in Japanese	Requires macOS 13.3 or later Tested only on Apple Silicon
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.