I am using MK in-App Purchase and I want to make an application that have (let’s say some books) and the books are getting added over time and each book the user have to buy it individually so how can I add with every book in-app purchase key for it without make an update for it.
I can’t figure out a way so I need a step by step or a link for a tutorial for that.
I’m not sure if this would be the best way to set this up but if you are selling the books at certain price tiers (e.g. 1.99, 2.99, etc) I would set up a number of In App Purchases to reflect each price tier. Then when the user purchases a book match the appropriate tier to the book purchased.
You can set these up using the tutorial you already linked to in your question.