Apple’s merged iPad, Mac apps leave developers uneasy and some users paying twice

Last year, Apple software chief Craig Federighi said developers would be able to easily bring their iPad apps to Mac computers, essentially letting coders write an app once and deploy it across millions more devices. So far, the reality has fallen short for some developers and is even leaving consumers paying twice for apps. Major app developers and service providers like Netflix are also demurring on taking part, at least at this early stage.Apple rolled out Cataly