I'm considering changing my app Look Up from paid to using an in-app-purchase to unlock all the features.
I was wondering if anyone has used the method listed here on StackOverflow of using the appStoreReceiptURL to verify if a user had purchased the app in the past, and using that to unlock all in-app-purchases.
I don't want to do the method listed below that recommends releasing a new app and pricing the current app very expensive, in order to be able to still release updates. Seems like an irresponsible way to do things.
Any suggestions on how to handle the transition are much appreciated!