This application which wanna do the access management tool of the future which super Su requires a rooted device. It is allows for advanced management of it access right for all the apps on your device that need root. It has been built from the ground up to counter a numbers of problems with other it management. Superuser access management runs through a so called "su binary". There can be only one of these at a time. So if you install Super SU. your previous superuser access management solution will no longer operate. So if you want to switch back. Open that application, and search for an option for it to install/update/replace the "su binary".