Biometric App Locker

byChar0n · Root & System

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android

AI summary

Xposed module that locks individual apps behind biometric or screen-lock authentication by intercepting activity launches at the system framework level. Version 1.8.0 adds per-app unlock method overrides, face unlock as a weak-class biometric option, and fixes for prompt self-cancellation and Xposed settings applying without reboot.

Generated by AI. May contain inaccuracies.

About this app

An Xposed module to lock apps behind biometric authentication.

About this module

Stock Android never had a native per-app lock, and Private Space (available since Android 15 Beta 2) is a secondary isolated profile where apps run as separate installs with their own data.

This module intercepts activity launches at the system framework level before the target app starts. The Activity is never created until auth succeeds. Tapping a locked app from the recents screen is intercepted too.

A reboot is required after install or update because framework hooks only load at boot (for now). Changing which apps are locked takes effect immediately.

Requirements

- Android 11+ with an enrolled biometric - Xposed manager with libxposed API 101 support

Install

1. Install APK 2. Enable module in your Xposed manager with System Framework scope 3. Reboot 4. Select apps to lock in the Apps tab

ℹ️ Note

For stock AOSP and Pixel ROMs. Other ROMs may work but are untested, use at your own risk. If you're on HyperOS, OxygenOS or ColorOS, your ROM already ships a native app lock and you probably don't need this.

License

GNU General Public License v3.0

xposed module privacy security biometric open source root

What's new

v1.8.0Aug 6, 2026

Features
0764416 (auth) Choose which biometrics and screen lock unlock apps by @hxreborn
The unlock prompt and the app's own settings lock now offer face unlock where it counts as a weak-class biometric, with an option to require the strongest biometrics or the screen lock instead.
b6c630c (ui) Set unlock methods for a single app by @hxreborn
An app can now use its own biometric and screen lock choice instead of the global one.
1e3496c (ui) Label each sensor's biometric class on the dashboard by @hxreborn
The hardware card now shows whether the fingerprint reader and face unlock are Class 3 or Class 2 on this device instead of one combined label.
Bug Fixes
b0b6c3f (auth) Retry the unlock prompt when it self-cancels on launch by @hxreborn
Locked apps no longer bounce back to the home screen when the unlock prompt disappears before you can authenticate.
af8af65 (prefs) Apply setting changes without a reboot on all Xposed builds by @hxreborn
Changes to the locked app list and other settings now take effect immediately on Xposed builds where they previously applied only after a reboot.
Refactor
87a708f (ui) Use primary elevated card for active status by @hxreborn