Root Checker Advanced Pro gives you an easy way to know if you have SuperUser (or ROOT) and Busybox in your system and their path routes.
Root Checker Advanced Pro give you an advanced explanation of what is Root and what is Busybox.
If you are finding how to root your phone, try to search in Google or XDA-Developers forum, there are lots of useful guides to root your Android phone.
This app was designed to have Holo Theme in all Android phones.
Paid version features:
-More Root Information
-More Busybox Information