What I'm looking for sounds simple to me but is WAY past my abilities. I'd like to have a hotspot with free access at a coffee shop. When a customer buys a coffee, cookie, etc., they get a receipt with a user ID and a password that is good for an hour of free access. The customer is required to login within a pre-determined time frame, say 10 minutes, after their purchase. After the hour, buy another coffee and get another free hour. Anyone heard of free or cheap software like this??
Thanks!