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.
Although I’m currently iPad only as my main computing device, I’ve never ruled out getting a traditional Mac computer if the need ever arise. Today’s announcement from Apple that Developers can transition any Mac app to a shared purchase with iOS, iPadOS, watchOS and tvOS is a very deliberate user-friendly move by Apple I must say.
I hope developers can find a way to benefit from this — as much as users will — when it comes to finding the right pricing balance going universal, especially developers that currently have a separate pricing structure for iOS and Mac, and rely heavily on the Mac counterparts of their apps as the main source of higher revenue.
Source: Apple Developer News
Update: MAR 23, 2020 — Universal Purchase for Mac Apps Now Available:
The macOS version of your app can now be included in a universal purchase, allowing customers to enjoy your app and in‑app purchases across iOS, iPadOS, macOS, watchOS, and tvOS by purchasing only once.