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Reminders vs Simple Reminder: catalog facts
Reminders	Simple Reminder
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under GPL-3.0-or-later.
Linux	Android
Recurring reminders and scheduled notifications Lists, search, sorting and filtering	Quick Settings tile for adding a reminder Supports typed times and custom dates
Linux only Small project with a modest feature set	Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
No account 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 October 1, 2026	Official website Full listing and sources Checked October 8, 2026

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