Open Source Android App Locker & Privacy Guard
AppLock is a modern, open-source Android app locker designed to protect your privacy and sensitive data. Lock any app, prevent unauthorized access, and enjoy a seamless Material You experience. No root required.
Caution
Google Play Protect is blocking some people from installing/updating App Lock because it uses Overlay Permission. It uses a false pretext of "this app may try to access sensitive information" without any base or information. If this happens to you, consider disabling Play Protect temporarily as mentioned here.
You may enable it back later after you install the app. We understand this introduces unnecessary friction but there's nothing we can do about it. Google does not like it when other developers try to fill the gaps they create themselves.
Note
You may confirm that the app is completely secure
VirusTotal Analysis: v1.5.0 Analysis
Exodus Privacy: Privacy Report
- Material You design, adapts to your theme
- Biometric and PIN authentication
- Fingerprint, Face Unlock, and PIN support
- Lock any app on your device
- Anti-uninstall protection
- Unlock timeout for convenience
- No root required
- One-tap app locking
- All data stays on your device
- Real-time background protection
- Lightweight and fast
The app is available for download via F-Droid, IzzyOnDroid aswell as Github Releases.
Beta Builds can be found here
- Shared devices
- Parental controls
- Protecting work apps
- General privacy
AppLock demonstrates:
- Jetpack Compose + Material 3
- BiometricPrompt integration
- Accessibility Service for app monitoring
- Encrypted on-device storage
- Clean Architecture
git clone https://github.com/PranavPurwar/AppLock.git
cd AppLock
./gradlew assembleDebug
Contributions are welcome! Please follow these steps:
- Fork the repository
- Create a new branch (
git checkout -b feature/rootSupport) - Make your changes
- Commit your changes (
git commit -m 'Add direct root support') - Push to the branch (
git push origin feature/rootSupport) - Open a pull request
- Follow Kotlin coding conventions
- Use meaningful commit messages
- Ensure code is well-documented
If you find AppLock useful, consider supporting development:
MIT License
Copyright (c) 2023-2025 Pranav Purwar
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
