According to the latest statistics report, iOS 9 operating system accounts for 75% of the market share among all of the Apple mobile devices. In other words, there would be three installed with iOS 9 among four Apple mobile devices.
The statistics showed it only took four months for iOS 9( including iOS 9.1 and iOS 9.2) to obtain 75% of the market share. It is no doubt that it made a great performance for a new OS. iOS 8 took about six months to obtain the same market share then.
Such statistics were collected from the devices are being used provided Apple App Store . It is customary that Apple could periodically reveal its app statistics so that its APP or gaming developers could modify their products based on the feedback.
On the contrary, its predecessoriOS 8 received fewer share market as iOS 9 received more market share. So for, the market share of iOS 8 declined to 19%, while its predecessors are worse, accounting for 7% total. You might find that Apple focus on its mobile OS much.
Apple users are not so fond of iOS 7, iOS 6 and iOS 8. Their performance went flat. It offers opportunities for iOS 9 to obtain more market share. What’s more, iOS 9 takes up only 1.3GB. It is about one third of iOS 8’s.