How to use App Lock on Android

To protect your encrypted messages from falling into the wrong hands, you can enable the Auto-lock feature in the Proton Mail(nuova finestra) app.

This feature will prompt you to either enter a PIN code or use biometrics to open Proton Mail. You can set your device to automatically lock every time you close your app, or after a set amount of time.

• Enable App lock
  • Change the Auto-lock timer
• Disable App lock

Enable App lock

1. Open the Proton Mail app and sign in.
2. Tap the menu ☰ button and open Settings.

3. Tap App customizations.

4. Open App lock.

5. Select between:

• Secure with PIN: Enter a PIN code and repeat it to confirm. You can then change the auto-lock timer, switch to Secure with biometrics (requires entering your PIN), or disable App lock.

• Secure with biometrics: Confirm by touching the fingerprint sensor zone on your phone. You can then change the auto-lock timer, switch to Secure with PIN (requires using your fingerprint), or disable App lock.

Change the Auto-lock timer

1. Open the Proton Mail app and sign in with your Proton Account.
2. Tap ☰ and open Settings.

3. Go to App customizations.

4. Open App lock.

5. Tap the timer (for example, Immediately) under Auto-lock.

6. Set the preferred auto-lock time, ranging from Immediately to After 60 minutes.

Disable App lock

1. Open the Proton Mail app and sign in.
2. Tap the menu ☰ button and open Settings.

3. Tap App customizations.

4. Open App lock.

5. Select Don’t lock.