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OnStop2FinishAndRemoveTask vs Drowser: catalog facts
OnStop2FinishAndRemoveTask	Drowser

Best for: Android users who want selected apps closed as soon as they leave them	Best for: Stopping background apps on a rooted Android phone
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under GPL-3.0.
Android	Android
Closes only the apps you register Runs automatically from a foreground service Small, single-purpose app	Automatically stops chosen apps when screen off Simple, focused purpose Can reduce background battery drain
Requires Shizuku to be installed and running Documentation is partly in Japanese	Requires root Force-stop can make apps misbehave Android only
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for OnStop2FinishAndRemoveTask github.com/takusan23/OnStop2FinishAndRemoveTask f-droid.org/packages/io.github.takusan23.onstop2finishandre… Catalog checked October 2, 2026	Official website Full listing and sources Sources for Drowser gitlab.com/juanitobananas/drowser play.google.com/store/apps/details f-droid.org/packages/com.jarsilio.android.drowser Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.