A software application developed for use on Apple's original iPad device as well as later iPads like. iPad apps are available through the Apple App Store and are designed to run on Apple's iOS mobile operating system, which powers the iPad as well as Apple's iPhone and iPod Touch devices.
iOS is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that presently powers many of the company's mobile devices, including the iPhone, iPad, and iPod Touch. It is the second most popular mobile operating system globally after Android.