The folks at Chitika have just released the results of a study looking at iOS version distribution post-iOS 6.1.1. The numbers are quite amazing; all versions of iOS 6 (6.0, 6.1.0, 6.1.1) now account for 83.1 percent of all iOS traffic.
At this point, only about 12.2 percent of all iOS users are still on iOS 5, while approximately 5 percent of total iOS users are using earlier versions of iOS. Once again, this number points out the fragmentation that is rampant in the Android OS world.
Google's numbers indicate that only 42.6 percent of Android users are running devices on Android OS 4.0 ("Ice Cream Sandwich") or 4.1-4.2 ("Jelly Bean"). Android 4.0 hit the market on December 16, 2011, Android 4.1 on July 9, 2012, and Android 4.2 on November 13, 2012. iOS 6 has only been around since September 19, 2012 and has achieved about double the penetration of Android 4.x.
Chitika's chart shows another interesting statistic; iOS 6.1.1 achieved about 1.4 percent of all traffic in its first day of release. The chart uses traffic data gathered on February 11 (the release date of iOS 6.1.1) and 12, 2013.