Primary account holders, or even all family members, need the ability to toggle between people in their family plans. For example, many children do not have their own cell phones. Having to log out and back in each account to book each child is extremely tedious, so parents won't book their children at all or book everything under their own name. Then, it conflicts with classes the parents may want to take. Checking/scanning in is even worse. Whether the app saves login information and let's you toggle between accounts like instagram or FB or uses a drop-down menu within one account, this would be a game changer!