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VergissNix vs Simple Reminder: catalog facts
VergissNix	Simple Reminder
Free Free and open source under GPL-3.0.	Free Free and open source under GPL-3.0-or-later.
Android	Android
Creates short reminders for everyday tasks Available through F-Droid and GitHub releases	Quick Settings tile for adding a reminder Supports typed times and custom dates
After changing a reminder's date or time, its old notification may still remain active	Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	License: GPL-3.0-or-later
Not stated if an account is 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 8, 2026	Official website Full listing and sources Checked October 8, 2026

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