App Lock

App Lock allows you to secure access to selected applications (emails, messages, calendar, etc.) with a PIN code or fingerprint. App Lock prevents unauthorized access to selected applications even when the device is unlocked.



We recommend that you turn on Overlay (Apps that can appear on top) permissions for ESET Mobile Security for better functionality.



When using App Lock feature, we recommend that you set a Security password in Anti-Theft settings to be able to reset the App Lock PIN code if you ever lose or forget it.

To set up App Lock on your device:

1.Tap App Lock on the ESET Mobile Security main screen.

2.Tap Enable App Lock.

3.Enter your PIN code, which will be used to unlock applications.

4.Confirm your PIN code.

5.Tap the application to lock or unlock it.


settings_icon App Lock Settings

Tap the gear icon in the top right corner to access the App Lock settings:

Lock new apps — With App Lock enabled, after you install a new application on your device, you will be asked if you want to lock the new application.

Re-lock app — You can set App Lock to lock an application immediately upon closing, after the screen turns off or after a minute has passed.

Lock type — You can lock your application using a PIN code or a pattern.

Unlock with fingerprintThis option is only available if a verified fingerprint is saved to your device. When enabled, you can unlock applications using the fingerprint saved to your device. You will be still able to unlock the application using the pin. To do so, tap Use PIN when opening a locked application.

Intruder alert — after a series of unsuccessful unlock attempts ESET Mobile Security photographs the intruder. The photo is shown after next successful unlock of the application.

Disable App Lock


night_mode_iconNight mode

You can activate Night mode on your app Lock screen to make it easier for your eyes by tapping the night mode icon in the upper right corner.