iOS 4 was a big update or if not the biggest update in the iPhone timeline. iOS 4 wasย originallyย released for the big upgrade on the new iPhone 4 and wasย supportedย by iPhone 3GS and iPhone 3G as well. Since then, Apple has released numerous iOS 4.xx updates fixingย issuesย and adding new features.
You might be thinking that most people update to latest iOS like I did, but that’s not the case. ย Accordingย to thisย graph andย statistics conducted by theย advertising bureau Apprupt, 95% of iPhone users still have their device running on iOS 4, while iOS 3 runs on 4 percent of iPhone user. There are also some iPhone running iOS 2 as well, but not that many at a mere of 0.17%.