App Lock : Fingerprint & Pin App protect applications every time when you access with a password that only you know. App Lock Tool - Hide Picture is a tool to lock apps you like, protect you from privacy leak! App Lock device allows you to lock apps like gallery, message apps, social apps and email apps with pin & pattern. It is your great privacy guard and powerful app lock! 📵Lock apps, hide photos, videos and messages with PIN lock , pattern lock or fingerprint lock📵 Highlight features ◆