IPhone (1st generation) $499, the original launch price of the 4 GB model. Apple released an SDK on March 6, 2008, allowing developers to create the apps that would be available starting in iPhone OS version 2.0, a free upgrade for iPhone users. On June 9, Apple announced the iPhone 3G, which began shipping July 11. The original iPhone was discontinued 4 days later; total sales volume came to 6,124,000 units. During release, the iPhone was marketed as running "OS X". The name of the operating system was revealed as iPhone OS with the release of the iPhone SDK. The original iPhone supported
IPhone 5S products, references to a fingerprint sensor on the home button in the beta release of iOS 7 and leaked packaging for an iPhone 5S showing that the traditional home button now had a metallic "ring" around it. Similar ring-based imagery was seen on the official invitation to Apple's iPhone press event in September 2013, where the new device was unveiled. Shortly before its official unveiling, "The Wall Street Journal" also reported the rumor. Apple announced the iPhone 5C and the iPhone 5S during a media event at its Cupertino headquarters on September 10, 2013. While the iPhone 5C became available