A recent research has shown that 87 percent of Apple users have switched to the new iOS 7.
Meanwhile, 11 percent users are still using iOS 6.
IOS 7 was launched in September last year, which changed iPhone completely, from color scheme to new features like Airdrop, and iTunes Radio.
According to Cnet, the newest OS comes with new feature such as CarPlay, tweaked Siri voice assistant and its Touch ID fingerprint sensor.