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BusyCal vs Itsycal: catalog facts
BusyCal	Itsycal
Paid Costs $49.99 USD after a free 14-day trial, and is also included in Setapp.	Free Free download from the developer's website.
macOS, iOS	macOS
Works with iCloud, Google, Exchange and CalDAV Highly customizable views including a Year Planner	Uses the events already in the Mac Calendar app Extensive keyboard controls, including Vim motions
Apple platforms only Paid after the trial	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
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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