With this app you will know if your phone is rooted.
Is my phone rooted? Do I have root on my mobile?
With root access you get full control of your Android smartphone. This control will allow us to install custom ROMs, remove all kind of applications, make full copies of data and use an endless number of apps that require root permissions.
This app will tell you if your phone is rooted, among other things like su binary, super user and busybox.
NOTE: This app will not root your device.