DroSU (Superuser for Android) description

The Superuser Plus for Android to manage your ROOT device.
Use this powerful Superuser app to manage your phone's ROOT permission.
Grant and manage Superuser rights for your phone.
This app requires that you already have root, or a custom recovery image to work.
Any app that requires root access must call the su binary which in turn calls this app to prompt the user for permission.
This app is also used to manage which apps have root permission as well as monitor their usage of the permission.