In addition to defining the iOS interface, UIKit defines the performance of the appliance. iOS gadgets include preinstalled apps developed by Apple together with Mail, Maps, TV, Music, FaceTime, Wallet, Health, and many more. The iOS App Store was opened on July 10, 2008 with an preliminary 500 functions out there. As of March 2016, 1 million apps are natively suitable with the iPad tablet laptop.
These apps have collectively been downloaded more than a hundred thirty billion occasions. App intelligence agency Sensor Tower has estimated that the App Store will reach 5 million apps by the yr 2020.