How to lock apps with a passcode on Android

Complete guide with multiple methods and troubleshooting

7-10 min read
Expert Verified
Last Updated: August 2025

Quick Answer

To lock apps with a passcode on Android, users can utilize built-in features or third-party applications. This ensures privacy and security by preventing unauthorized access to sensitive applications.

Beginner/Intermediate⏱ 7-10 min read

Prerequisites & Requirements

Before locking apps with a passcode on Android, ensure you meet the following requirements:
  • •Android device running Android 5.0 (Lollipop) or higher.
  • •Sufficient storage space for installing third-party apps if needed.
  • •Permissions to install apps from the Google Play Store.
  • •Backup important data in case of app malfunction or data loss.

Method 1: Using Built-in App Lock Feature (Samsung Devices)

This method is applicable for Samsung devices that come with a built-in app lock feature. Use this method if you prefer not to install third-party applications.
  • •Step 1: Open the 'Settings' app on your Samsung device.
  • •Step 2: Scroll down and tap on 'Biometrics and security'.
  • •Step 3: Select 'App lock'.
  • •Step 4: Enter your device's PIN, password, or pattern to access the app lock settings.
  • •Step 5: Toggle the switch next to the apps you want to lock.
  • •Step 6: Set a separate password for the locked apps if prompted.
  • •Step 7: Verify by attempting to open a locked app; it should require the password.
  • •Step 8: If it doesn't work, ensure you've followed all steps correctly and restart your device.

For Android 11 and above

Android 11 introduced enhanced privacy settings, including more granular app permissions.
  • •Step 1: Go to 'Settings' > 'Privacy'.
  • •Step 2: Tap on 'Permission manager' to review app permissions.
  • •Step 3: Ensure that the apps you want to lock have the necessary permissions.

For Android 10 and below

Older versions may have different settings or lack built-in app lock features.
  • •Step 1: Check if your device has a 'Secure Folder' option under 'Biometrics and security'.
  • •Step 2: Use 'Secure Folder' to add apps that you want to lock.

Method 2: Using Third-Party App Lock Applications

When built-in features are not available or insufficient, third-party apps can provide enhanced functionality.
  • •Step 1: Open the Google Play Store.
  • •Step 2: Search for 'AppLock' or similar applications (e.g., 'Norton App Lock', 'AppLock by DoMobile Lab').
  • •Step 3: Select an app and tap 'Install'.
  • •Step 4: Open the app once installed and follow the setup instructions.
  • •Step 5: Set a master password or pattern for the app.
  • •Step 6: Select the apps you wish to lock from the list provided.
  • •Step 7: Verify by attempting to open a locked app; it should require the password.
  • •Step 8: If it doesn't work, check app permissions and ensure the app has access to the apps you want to lock.

Troubleshooting Common Issues

If you encounter issues while trying to lock apps, consider the following solutions:
  • •Error: 'App lock not functioning' - Solution: Restart your device and ensure the app has the necessary permissions.
  • •Issue: 'Forgot app lock password' - Fix: Use the recovery option provided by the app, usually via email or security questions.
  • •Problem: 'Locked app still accessible' - Workaround: Ensure the app lock is enabled in settings and check for any app updates.

Advanced Tips & Shortcuts

Enhance your app locking experience with these tips:
  • •Keyboard shortcut: Use 'Power + Volume Down' to quickly access app lock settings on some devices.
  • •Command line: There are no command line options for Android, but using ADB can help for advanced users.
  • •Hidden feature: Some app lock apps allow you to take a photo of unauthorized access attempts.

Common Mistakes to Avoid

Avoid these common pitfalls:

Expert Tips

Using a combination of built-in and third-party app locks provides the best security.