Apple iOS12 is increasing steadily. Our resources claim that the company surpassed a threshold of 75%. Interestingly, a similar number was recorded last year on December 17.
Also, the reports from Mixpanel suggest that one of every twenty iPhone out there run on a version prior to iOS 11. Well, this is due to the old iPhones that can not switch to higher versions of iOS.
Also, in the first half of October, already half of the Apple devices switched to iOS in just 30 days of launch. The disappointing iOS 11 performance on iPhones is the significant reason for people to update on iOS.
Note that Apple is also improving on bringing the new features quickly on the iOS.1. For instance, Group FaceTime was missing from iOS but came immediately with iOS.1.