The next version of the macOS operating system will be able to accept iOS apps, with very little code change.
Will macOS and iOS operating systems merge? No, just announced Apple at the WWDC 2018 conference. In contrast, the apple firm wants to help developers to bring their iOS applications to macOS. At Priori, the operation is complicated because both systems use different programming interfaces: UIKit for iOS and AppKit for macOS.
That's why the next version of macOS, called macOS Mojave, will also include the UIKit interface.
This should allow iOS app designers to make it easier to customize for macOS, with little change in the app's code. Apple is testing this process by bringing to macOS four of its own iOS apps (Apple News, Stocks, Voice Memos, and Home). This should allow him to offer this method to developers in 2019.
