Apple introduced the first iPhone in January 2007, which at the time didn’t have background wallpapers and support third-party applications. The home screen only had top 15 icons including phone, browser, mail, calculator, music app.
iPhone iOS 2.0 was introduced in March 2008 along with some minor improvements such as: application development tools built-in iPhone SDK, the App Store and iTunes Store.
A year after, iPhone OS 3.0 was announced at the conference in March 2009, featured about 3,000 new API for developers and more than 100 new features for users, including in-game purchases, clipboard and search for Spotlight. Then, Compass and Voice Recorder icons were added to home screen application
iPhone OS 4.0/iOS 4, presented in April 2010 with more than 1,500 new API for developers and more than 100 new features for users. Among its key features include: multitasking, folders, iBooks and Game Center. For the first time, users can install photos and pictures as the background image on their devices.
iOS 5 was announced in the summer of 2011. The platform received about 200 innovations, including iCloud support and the concept of PC free (wireless sync, update and install an OS without a computer).
In June 11, 2012, Apple revealed the sixth generation mobile operating system, which provided more than 200 innovations, most of which had no effect on the iPhone home screen.
Finally in the upcoming iOS 7 for the iPhone and iPad, a full redesign was unveil at WWDC 2013. The platform has got the largest redecorate for the reason that introduction of iPhone OS in 2007. The iOS is starting to appear “lighter” and more uncomplicated to make use of. Apple redrawn utility icons to make them extra “flat”, using the brand new fonts, new wallpapers, revamped application personnel and has totally changed the interface parts that existed on the iPhone and iPad up to date years. The discharge date continues to be unknown however it’ll be indisputably the Fall together with the subsequent-gen iPhone.