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Remind vs When: catalog facts
Remind	When
Free Free software under the GNU GPL version 2.	Free Free software under the GPL-2.0 license.
Linux, Command line	Command line
Powerful scripting for recurring events, exceptions and holidays Output as text, PDF, PostScript or HTML	Stores calendar entries in an editable text file Lists upcoming items and prints calendar grids
The scripting language takes time to learn Distributed as a source tarball	Uses a command-line interface The site describes it as a minimal personal calendar
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-2.0-only
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 8, 2026

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