Once you have started to connect with your client(s) they will be able to access all the features that AteMate offers as long as they are connected with you (Coach - Client connection). During this Coach-Client connection period, clients can access AteMate for free as you (the Coach) are paying for the subscription.
You can view all the features of the AteMate app here.
Don't forget! As a coach, if you download AteMate from Apple or Google and open the AteMate app on your phone, log in with the same credentials that you used to sign up for AteMate for Coaches and you will be able to access all of the AteMate app as well to journal for yourself, or simply to check it out.