Avira AppLock+ is a new application for Android by security company Avira which provides you with options to lock apps on the device.

The basic version of AppLock+ is free but if you want to make use of all of the applications' functionality you have to make a one-time in-app payment of ?2.49 to unlock those features as well or ?1.49 to unlock them individually instead.

First thing you are asked to do after installation is set up a pin and verify it, and set up a recovery password on top of that.