Apple will allow developers to release universal apps that work across iPhone, iPad, and Mac as early as next year. Software developers will be able to design a single application that works with a touchscreen or mouse and trackpad depending on whether it’s running on the iPhone and iPad operating system or on Mac hardware.



Developers currently must design two different apps — one for iOS, the operating system of Apple’s mobile devices, and one for macOS, the system that runs Macs. That’s a lot more work. Apple customers have also long complained that some Mac apps get short shrift: while the iPhone and iPad Twitter app is regularly updated with the social network’s latest features, the Mac version hasn’t been refreshed recently and is widely considered substandard.

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Source: [H]ardOCP – Apple Plans Combined iPhone, iPad, & Mac Apps to Create One User Experience