Pocket Lock

Pocket Lock is an app to lock your Android device automatically: with this application, your phone locks every time you put it in your pocket.

In Pocket Lock's settings, you can choose which sensors you want the app to use in determining whether the phone is in your pocket. By default, the proximity and gravity sensors are turned on, so that if you cover the screen or turn the phone face-down, it will lock. Of course, you can disable any of these defaults.

In the same way, Pocket Lock's settings allow you to automatically deactivate the application during calls (very important), or deactivate it in order to unlock the screen. Likewise, you can choose whether the phone vibrates when it locks—or, alternatively, does nothing.

Even though Pocket Lock takes up less than 500 kilobytes, it offers some really useful features for any user.