Can I use ClassPass Go if I already have ClassPass? Kate Updated July 31, 2018 07:09 Yes! If you already have a ClassPass account, please use the same login credentials for ClassPass Go. Just download the ClassPass Go app and you’ll see the option to login. Related articles How many classes can I take per month? What is ClassPass Go? Can I use ClassPass Go without purchasing or being a member of ClassPass? What is ClassPass? What is the cost of ClassPass Go?