This is a very bad app ever I saw In my life this app does not have any artificial intelligence when I used this app and locked my phone and opened and my phone can't open I tried for 15 min at last I tried with two fingers then it opened if we have to use our to fingers why is this app I think that you shoud show some instructions before accessing option I didn't understand how to unlock every time I tap it says hindi in India.So don't think my review In a bad way I wrote what I experienced