Mobile | SmartphonesTwo out of three iOS devices are now running Apple's iOS 9As of 2nd November, 66% of all compatible devices have downloaded Apple's iOS 9.By Cookie Monster - 4 Nov 2015Image source: Apple Following the release of iOS 9.1 update on 22nd October, 66% of all compatible devices now run on Apple's iOS 9. iOS 8 now takes up 25% while earlier versions accounted for the remaining 9%.The data comes from Apple's developer webpage where visits to the App Store are measured. Touted by Apple as the fastest iOS adoption rate ever, more than 50% of compatible devices ran on iOS 9 in the first week of its availability. Just more than a week ago, just over 60% of devices were installed with iOS 9.Source: Apple via AppleInsiderOur articles may contain affiliate links. If you buy through these links, we may earn a small commission.Tagsappleiosios 9Share this article