Apple to target combining iPhone, iPad and Mac apps by 2021

San Francisco: Apple Inc. wants to make it easier for software coders to create tools, games and other applications for its main devices in one fell swoop — an overhaul designed to encourage app development and, ultimately, boost revenue.

The ultimate goal of the multistep initiative, code-named “Marzipan,” is by 2021 to help developers build an app once and have it work on the iPhone, iPad and Mac computers, said people familiar with the effort. That should spur the creation of new software, increasing the utility of the company’s gadgets.

Each new app is another revenue opportunity for Apple because it takes a cut of many app-related purchases and subscriptions. The company has positioned its services division as a major growth area.