Starting in March 2020, you’ll be able to distribute iOS, iPadOS, macOS, and tvOS versions of your app as a universal purchase, allowing customers to enjoy your app and in‑app purchases across platforms by purchasing only once.
This is fantastic news!
I've been a new extension for Safari, called RadBlock and I've been wondering how I could offer an iOS version with the least amount of friction for users. I'm just about ready to start beta testing. Talk about perfect timing!