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App Lock

Secure your sensitive apps with powerful biometric protection using AppLock!
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 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 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 by F-Droid 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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