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App Lock

Secure your sensitive apps with powerful biometric protection using AppLock!
New in version 2.0.0
* Add global kill switch
* Add pattern password type (#57, #63, #82, #105)
* Android 16 based pin screen
* Add unlock until screen lock feature
* Add support for landscape mode
* Add auto unlock feature
* Overhaul locking mechanism
* Improve anti uninstall mechanism (#78)
* Allow system apps to be locked
* Fix items hidden under navbar (#94)
* Improve recents detection
* Simplify user flow
* Improve settings screen
* Add error handling to safely catch and log accessibility service crashes
* Fix
Secure your sensitive apps with powerful biometric protection using AppLock!

AppLock is a modern, open-source privacy tool designed to keep your sensitive apps safe. With a beautiful Material 3 Expressive interface and robust biometric security, AppLock ensures your data stays private — always on your device, never in the cloud.

Features:

* **Material You Design**: Seamlessly adapts to your system theme
* **Biometric Unlock**: Use face unlock, fingerprint or PIN for fast, secure access
* **Anti-uninstall**: Prevents unauthorized removal
* **Unlock Timer**: Optional timer to keep apps unlocked for fixed time period after unlocking
* **No Root required**: Works on all devices without root access
* **One-tap protection**: Lock any app instantly
* **Real-time monitoring**: Protects apps as they launch
* **100% offline**: No ads, no trackers, no data collection

Perfect for:

* Privacy-conscious users wanting to secure sensitive apps
* Securing banking, messaging, and social apps
* Parents restricting access for children
* Professionals protecting work apps

App Lock is designed to be lightweight and efficient, with minimal battery impact. It runs entirely offline, ensuring your data remains private and secure.

Built with Jetpack Compose and Material 3 for a smooth, intuitive experience. AppLock is free, open-source, and respects your privacy — always.

Source code and issue tracker: https://github.com/PranavPurwar/AppLock
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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.

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  • Version 2.0.0 (200) suggested Added on Oct 26, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • android.permission.BIND_ACCESSIBILITY_SERVICE
    • 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"
    • run foreground service with the type "systemExempted"
      Allows the app to make use of foreground services with the type "systemExempted"
    • 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.
    • Schedule precisely timed actions
      This app can schedule work to happen at a desired time in the future. This also means that the app can run when you're not actively using the device.
    • android.permission.SET_ACTIVITY_WATCHER
    • This app can appear on top of other apps
      This app can appear on top of other apps or other parts of the screen. This may interfere with normal app usage and change the way that other apps appear.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • control vibration
      Allows the app to control the vibrator.
    • dev.pranav.applock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
    • moe.shizuku.manager.permission.API_V23

    Download APK 2.2 MiB PGP Signature | Build Log

  • Version 1.3 (4) - Added on Jul 15, 2025

    arm64-v8a armeabi-v7a x86 x86_64

    This version requires Android 8.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • android.permission.BIND_ACCESSIBILITY_SERVICE
    • 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.
    • This app can appear on top of other apps
      This app can appear on top of other apps or other parts of the screen. This may interfere with normal app usage and change the way that other apps appear.
    • use biometric hardware
      Allows the app to use biometric hardware for authentication
    • use fingerprint hardware
      Allows the app to use fingerprint hardware for authentication
    • control vibration
      Allows the app to control the vibrator.
    • dev.pranav.applock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 2 MiB PGP Signature | Build Log

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