There is a serious problem of differentiation in the Android system, most users do not have access to the latest version of the system, and the old version of the system is also disorganized. In comparison, Apple's iOS system is updated in a very timely manner, and users can use the latest version of the system as long as they choose to update.
However, judging from the data released by Apple, it seems that Apple is also beginning to face the problem of system differentiation. In terms of iOS 17 usage, Apple delivered one of the worst report cards in history.
It is reported that in the past four years, only 76% of the new iPhone devices use the iOS 17 system, while in the data of the same period last year, 81% of users use the latest iOS 16 system. 20% of devices are still using iOS 16, and 4% are using older versions.
If you look at all iPhones, iOS 17 is only 66% used, iOS 16 is used 23%, and 11% of devices are used earlier.
Apple's iOS 17 version had a large number of bugs at the time of release, and Apple is still working on fixing these bugs nearly three months after its launch, which may be why some users choose not to update the system.
Nowadays, the iOS 17 system has been upgraded to iOS 173. However, Apple is still fixing various problems endlessly, and when fixing known problems, other problems are exposed.
Whereas, in iPad devices, iPadOS 17 is used less than mobile phones. But in reality, iPadOS 17 is doing better than the previous generation, with 61% of the models in the last four years using iPadOS 17, compared to 53% in the same period last year.