If you've rooted your phone in order to gain superuser permissions, you might find it handy to have a tool like Kingo SuperUser. It's an application with which you can manage rooted Android devices.
Total control over your tablet or smartphone
Installing this APK will allow you to grant or withdraw permissions to and from different system processes and applications however you want. With the latter, you can gain extra storage space as it allows you to uninstall preinstalled applications known as bloatware.
The tool you need to make your smartphone truly yours.
All the latter from a simple interface that offers different options to control the application. But remember, you need to have your phone or tablet rooted to be able to use this application.