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Calendars by Readdle vs Vimcal: catalog facts
Calendars by Readdle	Vimcal
Free Free to download from the App Store and as a Mac download.	Paid Paid, with a free trial that needs no credit card.
macOS, iOS	Web
Natural language event creation Calendars and tasks in one view	Keyboard shortcuts for nearly everything Unified view of multiple Google and Outlook accounts
Apple platforms only No Windows or Android version	Requires a Google or Outlook calendar Paid after the trial
Downloadable app	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	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 September 23, 2026

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