After reboot, look for the app in your app drawer. You can also download Root Checker from the Play Store (if your device still supports it) to confirm.
💡 For devices from this era, SuperOneClick is often the easiest method if you can’t find a custom recovery. But for Android 4.0+, look into more modern tools like KingoRoot, Magisk, or device-specific methods. superoneclick 2.3.6