I have a macOS app (AppKit-based, not Mac Catalyst) and an iOS app serving a very similar purpose and user group. Both are currently using non-consumable IAPs to unlock functionalities. I‘m considering a subscription model and wonder if both apps could share the same IAP products.
I‘m well aware that both apps need to use the same Bundle ID / App Store Connect entry, so I‘m willing to discontinue the existing Bundle IDs (while keeping the apps installable for existing customers), but Apple‘s info about „Universal Purchase“ is only mentioning Mac Catalyst apps for macOS:
Mac Catalyst. With Xcode 11.4 or later, Mac apps built with Mac Catalyst can share a bundle ID with the iOS version of the app, so universal purchase is supported.
Can an AppKit-based macOS app and an iOS app share the save Bundle ID and offer a Universal Purchase?