There is no self-contained theme. According to Kutu's query, Apple's mobile phone has no theme of its own, only its own wallpaper. IPhone is a series of smart phones developed and sold by Apple, which is equipped with the iOS mobile operating system developed by Apple itself. The first generation of iPhone was released on June 9, 2007 by Steve Jobs, then CEO of Apple, and officially released on June 29 of the same year.