How will you be tracking?
If your school requires you to have a mobile device find out which kind from your program's administration. The apps are free to download. Just keep your software up to date!
If you will just be using the website, there is nothing to sync or install. You just need access to a computer with Internet and please try to keep your browser up to date. Most prefer Firefox, Chrome, Internet Explorer or Safari. You can find and install any of these for free simply by searching the Internet with Google.
This link takes you to the hardware and software requirements for using CompTracker: