How many classes are available? How often do you add new classes? Kate Updated July 31, 2018 07:11 We offer over 500 classes, and we add hundreds of new classes every month to keep things fresh. Download here! Related articles What if I don’t know how to do an exercise? Does Go work with fitness trackers? Can I take the same class with my friend? Are the classes geared for the home, outdoors or at a gym? What is Go?