Apple has posted its first iOS 15 installation statistics since iOS 15 was released back in September. The number will give us an idea of how many devices have the new version of iOS installed four months after its introduction.
iOS 15 is installed on 72% of all iPhones that debuted in the last four years. 26% of devices still use iOS 14, and 2% are running an earlier version of iOS. As far as iPhones released more than four years ago, 63% are running iOS 15, 30% run iOS 14, and 7% run earlier versions of iOS.
iPadOS installation numbers lag behind those of the iPhone, with 57% of all iPads introduced in the last four years running iPadOS 15, with 39% continuing to run iPadOS 14. 4% run an earlier version of iPadOS. Among all iPads, 49% of devices are running iPadOS 15, 37% are running iPadOS 14, and 14% have an earlier version of iPadOS installed.
The number of devices running iOS 15 is less than prior operating system installation rates at four months.
iOS 14 was installed on 81% of iPhones released in the last four years by December 2020. While iOS 13 also saw slow installation numbers, it was installed on 77% of eligible devices by the end of January 2020.