The lock app is providing better security to the apps installed inthe mobile.
The persons like me has so many personal datas such as photos , vedios, pdfs etc. can be hide from the mobile so no one can be take from it by using the mobile.
It allow to make secure with a defferent ways such as password lock, hide, magical lock etc.these by no one can access that.
It offers excellent feature by hiding this app from the mobile so no one can know about the security in a mobile and can accessed with dialer pad it little better than the other app .
Also cheap in size not makr your phone to hang friendly and convenient.