Lock apps with PIN, Pattern & Fingerprint. Fast, secure, and easy to use.
1,000+ downloads
About Smart AppLock – App Lock
Smart AppLock – App Lock is a tools app developed by One2 Labs.
Download Statistics
Smart AppLock – App Lock has been downloaded 3.4 thousand times. In the last 30 days, the app was downloaded 350 times.
User Ratings
The app has no ratings yet.
App Information
Smart AppLock – App Lock is FREE to download. The APK download size is 4.76 MB. The latest version available is 4.0.0. The last update was on July 9, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play December 2025.
Description
Smart AppLock is a privacy-focused app locker that lets you restrict access to selected apps using PIN, pattern or fingerprint authentication. It works without unnecessary permissions and gives you control over how and when your apps are protected.
🔒 App Lock with PIN, Pattern or Fingerprint
Choose your preferred lock method and apply it to individual apps. The lock screen appears whenever a protected app is opened.
🛡️ Additional Protection Options
• Optional cover screen that displays before the lock screen • Optional attempt-capture feature that stores a photo when a wrong password is entered • Adjustable delay settings for repeated unlocks • Support for trusted devices and flexible unlock behavior
🎨 Simple & Clear Interface
Smart AppLock offers a clean layout to select and manage protected apps. You can organize your lock list and adjust settings at any time.
🔐 Privacy-Focused
Smart AppLock does not collect or store personal data. All processing takes place on your device, and no data is sent to external servers.
📢 Accessibility Service Disclosure
Smart AppLock uses Android’s Accessibility Service only to provide the app lock functionality.
Why it is used
• To identify when a selected app is opened • To display the lock screen above the detected app
What the service can access
• Foreground app information • Limited view content needed to detect protected apps
What the service cannot do
• It does not read messages, passwords or personal data • It does not perform actions inside other apps • It does not send any data to external servers or third parties
Data Handling
All Accessibility data is processed locally on your device. Nothing is stored externally or shared.
Your Control
The Accessibility permission is optional and can be disabled anytime from: Settings → Accessibility → App Lock
📌 Additional Permissions
• Draw over other apps: required to display the lock screen • Battery optimization settings: may need adjustment on some devices for consistent locking
🚀 Getting Started
Open Smart AppLock
Select apps to protect
Enable Accessibility Service
Set your PIN, pattern or fingerprint
Smart AppLock provides a simple, private way to add an extra layer of protection to apps on your device.
Recent changes: 🔐 Added support for alphanumeric passwords 🛠️ Fixed a crash when using biometric authentication with the Accessibility Service enabled 🎨 Fixed the lock screen overlay background color 🔊 Fixed Accessibility menu behavior in the volume panel 🔒 Fixed an issue where the lock screen would not appear again after the first unlock
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This kind of App Lock is a rarity on play store and is the only App Lock that successfully locks all user and majority of system apps needed for granular behavior control of the smartphone. Please fix the locking of system UI app on Google Pixel 10 pro and accessibility for your App Lock that sometimes does not work despite accessibility is turned on. Please add an option to self lock the newly installed apps. I simply love your App Lock. Thanks for development!
★★★★☆Haris Sethi· Mar 12, 2026
Hi, All features are the best of this app locker. Following three features should also include: 1) Themes / Backgrounds. 2) Vibration enable and disable option. 3) One time unlock option - when unlock one app then unlock all apps. Thanks.
★☆☆☆☆*SHUBHAM_ KUMAR*· May 2, 2026
Does not work properly many times and every time
Google Play Rankings for Smart AppLock – App Lock
This app is not ranked
Technologies used by Smart AppLock – App Lock
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