Your are not sure that your device is rooted (has root access)? use Basic Root Checker to be sure.

Basic Root Checker does NOT root your device. It will only show you if your device has root access (is rooted).
This app requires ROOT use it at your own risk.
This app does NOT collect any data or personal information.

This app needs Internet access for the ads displayed in the app.

This app is not endorsed by or affiliated with chainfire or SuperSU