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Calendar 366Calendr
Freemium

Subscriptions are sold through the App Store; check the site for current pricing.

 Free

The open-source software is available without a license fee. Hosting, hardware and…

macOS, iOS macOS
  • Events and tasks shown together in one calendar
  • Natural-language event entry
  • Supports quick event entry with natural-language dates.
  • Apple platforms only
  • Pricing details are not stated on the homepage
  • Requires macOS calendar access for event integration.
Downloadable app Downloadable app
Closed source Open source
License not stated License: MIT
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 22, 2026

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