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calcurse vs khal: catalog facts
calcurse	khal
Free Free to download, with donations accepted.	Free Free and open source.
Linux, Command line	macOS, Linux, Command line
Recurring appointments, all-day events and to-dos Scriptable command-line mode	Works with CalDAV calendars Both a command-line interface and an interactive terminal UI
CalDAV sync is experimental Terminal interface only	Terminal only, with no graphical interface Calendar syncing is set up separately rather than built in
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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