App Lock

Open Source Android App Locker & Privacy Guard

Overview

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

Features

• 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
• Anti-uninstall protection for user apps
• Unlock timeout for convenience
• No root required
• One-tap app locking
• All data stays on your device
• Real-time background protection
• Lightweight and fast

Download

The app is available for download via F-Droid, IzzyOnDroid aswell as Github Releases.

Beta Builds can be found here

Use Cases

• Shared devices
• Parental controls
• Protecting work apps
• General privacy

Support Development

If you find AppLock useful, please consider supporting its development with a small donation. Every contribution matters.

OpenCollective: https://opencollective.com/invokevirtual

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UPI (India): pranavpurwar@fam

License

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.