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Reminduck vs Endeavour: catalog facts
Reminduck	Endeavour
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the GPL-3.0 licence.
Linux	Linux
Simple, single-purpose reminder app Playful design with a quacking duck	Native GNOME design Long-running project
Linux only Basic feature set compared with full task managers	Linux only Aimed at personal task lists rather than team project management
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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