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PingOff vs Flip 2 DND: catalog facts
PingOff	Flip 2 DND
Free Free and open source under the GPL-3.0 or later.	Free Free and open source under the MIT licence.
Android	Android
Switches Do Not Disturb automatically per app Simple, single-purpose design	Toggles Do Not Disturb with a single physical gesture Optional screen-off-only mode to avoid accidental triggers
Android only Young project with a narrow scope	Android only Does one narrow job and offers no scheduling
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
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 2, 2026	Official website Full listing and sources Checked October 2, 2026

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