App Lock

App Lock

Secure your sensitive apps with powerful biometric protection using AppLock!

Pranav Purwar Security System

Screenshots

Screenshot of App Lock Screenshot of App Lock Screenshot of App Lock Screenshot of App Lock Screenshot of App Lock Screenshot of App Lock Screenshot of App Lock

Description

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

What’s new (2.5.1)

* fix previous passwords breaking
* fix password screen showing again on back press

Versions

Version Date Size Requires Android Download
2.5.1 current
1cc169e34303ab74…
2026-07-11 2.2 MB API 26
2.5.0
8b11477bcdc3afcc…
2026-07-10 2.2 MB API 26
2.4.3
e8e6919502198c73…
2026-05-29 2.2 MB API 26

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Installed appsSee which apps are installed.
  • Display over other appsDraw content on top of other apps.
  • VibrationControl the vibration alert.
  • NotificationsShow notifications.
  • REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
  • Run at startupStart automatically after the device is switched on.
  • Exact alarmsTrigger actions at a precise time.
  • BiometricsUnlock with fingerprint or face.
Show 9 more permissions
  • HIDE_OVERLAY_WINDOWS
  • PACKAGE_USAGE_STATS
  • BIND_ACCESSIBILITY_SERVICE
  • Foreground serviceKeep running in the background, visible in the status bar.
  • FOREGROUND_SERVICE_SPECIAL_USE
  • FOREGROUND_SERVICE_SYSTEM_EXEMPTED
  • FingerprintUnlock with a fingerprint.
  • applock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • permission.API_V23

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