I currently have an iOS app that is a subscription based app. It is a Newsstand app. I need to be able to allow users who have a previous subscription to the print edition to have access to the iPad content. The newspaper has a list of thier subscribers.
Is it possible to write code to check against this list to see if a user already has paid for a subscription and if so where do I go to research this?
I need to be pointed in the right direction.
Thanks