iOS 17 is installed on 76 percent of iPhones released in the last four years, according to newly released iOS 17 adoption statistics provided today by Apple. This is the first time that Apple has given us iOS 17 installation numbers since the operating system was released last September.
20 percent of iPhones released in the last four years are still running iOS 16, while four percent run an earlier operating system. Of all active iPhones, 66 percent are running iOS 17, 23 percent are running iOS 16, and 11 percent are running an earlier version of iOS.
