Quick App Lock

Lock any app you want to protect! Lock some apps before handing your phone to others (friends, kids...). This app can protect your privacy.

Simple and easy to use:

Open an app you want to protect;

Click the float lock icon on the top of screen, select "Lock" menu item.

You can change appearance of the service icon, such as size, transparency, auto hide. Long click the icon then drag and drop it to change its position.

The service will automatically pause when screen off, so do not worry about power consumption.