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Calendr vs Fantastical: catalog facts
Calendr	Fantastical
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium Free to start, with optional premium features.
macOS	Windows, macOS, iOS
Supports quick event entry with natural-language dates.	Natural language event and reminder entry Combines many calendars into one view
Requires macOS calendar access for event integration.	Premium features require payment No Android or Linux version
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
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
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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