Android: There’s no shortage of ways to keep people out of your apps.
AppLock provides a unique alternative, though.
This app prevents users from accessing others until they enter a specific pattern of volume button presses.
The advantage to this method is that it’s almost entirely invisible.
AppLock also disguises itself as a note-taking program with its own lock code to protect it from being opened.
AppLock| Google Play Store viaAddictive Tips
