Ad network Chitika's analytics arm, Chitika Insights, sampled millions of ad impressions from Sept. 19 to Sept. 20, comparing the growth rate of iOS 6 to total iOS device web usage. After seeing a peak of over 16 percent earlier today, the adoption of the new iOS 6 has is now hovering at 15 percent.
Source: Chitika Insights
The full graph illustrates the huge swell in iOS 6 usage right around the time Apple released the OS to the public. Before the mountainous climb, the number of devices running iOS 6 was well below one percent, mainly consisting of developers using pre-release version of the OS.
In comparison to Thursday's findings, Apple's previous iOS 5 took five days to breach 20 percent adoption. If the adoption rate of iOS 6 continues, it is on track to outperform its predecessor.
Chitika also points out that a similar study found the adoption rate of Google's Android 4.1 Jelly Bean, which is only compatible with certain handsets, saw a 1.5 percent in its first two months of availability.