I work for a dance company that's looking for a program to track students taking our classes. We currently use square to accept payments for punch cards and drop ins, but are interested in more web-based ways of tracking students. For example there's the MINDBODY app where it accpets payments, keeps track of how many classes students have before they need to pay again, and allows students to sign up for specific classes which means we could track them. MINDBODY has it's own reader, so I'm wondering if Square has something similar. I do see "Appointments" but that's for individual people for specific times, rather than groups of people taking one class.