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We are writing chat alike app in which user can buy some amount of messages. Let’s say 100 messages. We can control within our app how much of those messages user used.
Now imagine user exhausted purchased 100 messages then reinstall app and voi’la – user has again 100 messages!
So the question is: how to control that item is already used? Can I report back to in-app server that purchased item can’t be used anymore?
Any ideas?
With new Market Billing library revision #3 – it’s possible to use items consumption
Proof link