Apple is working on a project with code name Marzipan, which will combine applications for iOS and macOS into a single platform, according to Bloomberg sources.
Now applications are written separately for the iPhone and iPad and separately for Mac, distributed in different stores. Mac App Store, a store for applications for "poppies", has not been updated for a long time. Compared to the App Store for iOS, it is slow, looks obsolete, applications in it are often updated less frequently and are more expensive.
But, perhaps, Apple will allow developers to create universal applications that will work on all Apple devices. One application, one store - easier to create, easier to distribute products.
The company can present a unified platform for conference for developers (WWDC) in June 2018. In this case, this is will be the largest change in the software platform with the time of the first iOS release.