Apple has now
fully launched Universal Purchase, a new feature of its App Store that lets customers make a single app purchase to gain access to that app across
all of Apple's OS platforms, including macOS and iOS. For example, buying an app on your iPhone would automatically give you access to not only the iOS version, but also the macOS, iPadOS, watchOS, and tvOS versions of that same app, if they exist. Developers need to update their apps and App Store listings to support Universal Purchase.
