iOS is a mobile operating system developed by iOS. iOS was released in 2007 and it is available in 40 languages. iOS is the second most popular mobile operating system after Android. iOS was specially designed for the iPhone. iOS also has an App Store for downloading third-party apps. As of March 2018, The Apple App store has more than 2.1 million iOS application. These mobile apps have been downloaded more than 130 billion times.
iOS is one of the best mobile operating systems that use advanced security function. As a report of 2012, 410 million activated devices were running on iOS. iOS is updating day by day and each new feature is containing a big and advanced feature.