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Dato vs Itsycal: catalog facts
Dato	Itsycal
Paid One-time purchase on the App Store with updates included.	Free Free download from the developer's website.
macOS	macOS
Calendar, events and world clocks in one menu bar item Fullscreen meeting notifications	Uses the events already in the Mac Calendar app Extensive keyboard controls, including Vim motions
macOS only Paid app	macOS only, version 11 or later Depends on Calendar app accounts for event sync
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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