I went to college before it was app everything and our student id’s were smartcards. Dining plan associated with the smartcard. Just stick it in the reader when you show up and you’re good. You could put cash on your card then use it for the vending machines or laundry or any little incidental on campus. If you needed cashed added to your account, your parents could go online and do it, or you could. That was the only online component. The entire system just worked without any fuss or privacy concerns or anything.