What is iPhone? An iPhone is a line of smartphones designed, developed, and marketed by Apple Inc. They run iOS, Apple’s mobile operating system. The first-generation iPhone was announced by Steve Jobs on January 9, 2007, and it was released in the United States on June 29, 2007. As of February 2023, there have been 33 generations of the iPhone, with the most recent being the iPhone SE (3rd generation) and the iPhone 14 series. iPhones are known for their