Following the highly anticipated launch of Apple’s latest major iOS revision, iOS 5, Chitika Insights found that the new build accounted for 20% of iOS traffic within just five days. Now, as we approach the one-month mark since iOS 5 was released, the new OS can be found on more than 38% of iPhones, 30% of iPads and 12% of iPod touch devices. Using impressions served by its mobile ad network as a guide, the firm analyzed traffic between October 22nd and October 28th to determine how widely iOS 5 had been adopted across Apple’s various iOS devices. Read on for more.

The iPhone’s adoption rate is clearly the most impressive, especially considering the new software is not compatible with two of the five iterations of Apple’s popular smartphone. “The iPhone 4S sold over 4 million units in the first weekend, so this certainly contributes to the heightened volume,” Chitika noted in a post on its Chitika Insights blog. “However, this could be compounded by the fact that many consumers use their cellphones as their primary mobile device, and update it as necessary due to its great utility.” IOS 4 is still the most widely installed build of Apple’s mobile platform by a wide margin.

Zach Epstein has worked in and around ICT for more than 15 years, first in marketing and business development with two private telcos, then as a writer and editor covering business news, consumer electronics and telecommunications. Zach’s work has been quoted by countless top news publications in the US and around the world. He was also recently named one of the world's top-10 “power mobile influencers” by Forbes, as well as one of Inc. Magazine's top-30 Internet of Things experts.