√√√App Lock ☞ App Lock is a powerful and secure free app that can lock Gmail, Google, Chrome, YouTube, Facebook and more. 1).Intruder function: After the function is enabled, the protected app is unlocked more than 3 times, if the protected app is still being unlocked. App lock will enable the front camera to take pictures and save. Let you know who is trying to get into your protection app. 2). Pretender function: There are two camouflage functions, which can disguise the APP icon and disguise