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ATOK vs Google Japanese Input: catalog facts
ATOK	Google Japanese Input
Paid Sold as the ATOK Passport subscription with a free trial.	Free Free to download and use.
Windows, macOS, Android, iOS	Windows, macOS
Conversion engine that adapts to your typing habits 63 optional genre dictionaries	Large vocabulary built from web usage Automatic dictionary updates
Subscription required after the trial Website and interface are in Japanese	No Linux build; Mozc fills that role Site and help are in Japanese
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Account needed	No account needed
Not stated if it works offline	Not stated if it 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.