I have an app that is currently in the iOS App Store using RevenueCat for a one-time in-app purchase to unlock all the features.
Current App • Version 4
Bundle ID: com.example.version4
I’m soon going to release version 5 of this app, but it’s going to exist side-by-side in the App Store with the prior version and have its own, new bundle ID.
New App • Version 5
Bundle ID: com.example.version5
From within version 5, I want to be able to query RevenueCat to see if the user has a version 4 license so that I can upgrade them to version 5 for free.
How can I check for the user’s prior purchase from within an app that has a different bundle ID?