Alternatively, download this Android Terminal Emulator. Start it and see what prompt you are getting. If its "#" prompt then you are a superuser means your device is rooted. If you get "$" prompt then your device is not rooted.
Need to know about your android device is rooted or not. Here i suggest how can check if an Android device is rooted.
Look in your application drawer for a project that controls root access. There are a few decent ones, and most root techniques introduce one amid the procedure. On the off chance that you don’t see one and you got root authorizations, you ought to introduce one immediately. On the off chance that the application is there and present, open it and ensure it lets you know everything is An OK.