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Org mode vs calcurse: catalog facts
Org mode	calcurse
Free Free and open source, with optional support through Liberapay.	Free Free to download, with donations accepted.
Windows, macOS, Linux	Linux, Command line
Notes, tasks, agenda and documents in one plain text format Files are easy to sync and version control	Recurring appointments, all-day events and to-dos Scriptable command-line mode
Requires GNU Emacs for the full feature set Steep learning curve for people new to Emacs	CalDAV sync is experimental Terminal interface only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	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.