How to tell if my phone has been rooted &loaded with tracking /monitoring spyware? On Galaxy 5 & Lg
To check if it's rooted you could install root checker. It will verify if the device is rooted.
Unless it's a free low end monitoring app it will require root access.

Free apps will show under security then admin. Paid apps will not show there. They will install named X app and once installed and granted root, they will hide themselves as usually a setting app.