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Drowser

Simple background app killer
New in version 1.0.15
New in 1.0.15

★ Fixed a crash that could happen right after the app started running in the background.

New in 1.0.14

★ Just some maintenance.

New in 1.0.13a

★ Just some maintenance

New in 1.0.12

★ App list now shows a loading spinner on startup instead of appearing empty.
★ App list loads significantly faster.

New in 1.0.11

★ Updated translations.

...
Avoid rogue apps from running in the background with Drowser.

Drowser is a simple app that kills the selected apps when the screen turns off.

It requires root and uses it to kill the apps with an 'am force-stop app-id'. This is a very impolite way of stopping apps. These might (and probably will) misbehave. You might also lose data because of this. Beware!

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 1.0.15 (38) suggested Added on Sep 15, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • android.permission.PACKAGE_USAGE_STATS
    • show notifications
      Allows the app to show notifications
    • query all packages
      Allows an app to see all installed packages.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.jarsilio.android.drowser.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 2.8 MiB PGP Signature | Build Log

  • New in version 1.0.14
    New in 1.0.14

    ★ Just some maintenance.

    New in 1.0.13a

    ★ Just some maintenance

    New in 1.0.12

    ★ App list now shows a loading spinner on startup instead of appearing empty.
    ★ App list loads significantly faster.

    New in 1.0.11

    ★ Updated translations.

    ...
  • Version 1.0.14 (37) - Added on Sep 11, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • android.permission.PACKAGE_USAGE_STATS
    • show notifications
      Allows the app to show notifications
    • query all packages
      Allows an app to see all installed packages.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.jarsilio.android.drowser.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 2.8 MiB PGP Signature | Build Log

  • New in version 1.0.13
    New in 1.0.13

    ★ Just some maintenance

    New in 1.0.12

    ★ App list now shows a loading spinner on startup instead of appearing empty.
    ★ App list loads significantly faster.

    New in 1.0.11

    ★ Updated translations.

    ...
  • Version 1.0.13 (35) - Added on Aug 14, 2026

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 6.0 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Permissions
    • view network connections
      Allows the app to view information about network connections such as which networks exist and are connected.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "specialUse"
      Allows the app to make use of foreground services with the type "specialUse"
    • android.permission.PACKAGE_USAGE_STATS
    • show notifications
      Allows the app to show notifications
    • query all packages
      Allows an app to see all installed packages.
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • ask to ignore battery optimizations
      Allows an app to ask for permission to ignore battery optimizations for that app.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • com.jarsilio.android.drowser.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 2.8 MiB PGP Signature | Build Log