The Evolution of iOS

A look at the evolution of Apple's mobile operating system.

The Evolution of iOS [cover]
Credit: Computerworld / Apple
Progression of iOS

Just as a computer would be useless without an operating system, so would a phone. In 2007, Apple changed the game with the introduction of its smartphone and first-ever mobile operating system.

The iPhone sure has evolved over the past eight years, and so has iOS. Apple has introduced features in iOS that many users wouldn’t be able to imagine life without, like iMessage, the App Store, FaceTime, Siri, iCloud, Apple Pay and so on.

Here we explore the evolution of Apple’s iOS and how it has shaped the functionality of the iPhone and other iOS devices, like the iPod touch and the iPad.

The Evolution of iOS - iOS 1
Credit: Computerworld / Apple
iOS 1

Apple’s first-ever touch-centric mobile operating system was announced on Jan. 9, 2007 when former CEO Steve Jobs introduced the iPhone. The OS was never officially recognized, but Jobs called it ‘software’ that runs a mobile version of Apple’s desktop OS X. Features included multi-touch gestures, visual voicemail, mobile web browsing on Safari and a YouTube app. A January 2008 update added a customizable home screen that let users move apps to dedicated “pages” on the device and gave iPod Touch users new apps: Mail, Maps, Weather, Notes and Stocks. The update was free for iPhone users, but iPod Touch users had to pay $19.99.

The Evolution of iOS - iOS 2
Credit: Computerworld / Apple
iOS 2

After the release of the iPhone SDK on March 6, 2008, Apple officially recognized its mobile operating system as iPhone OS. iPhone OS 2 came prepackaged with the iPhone 3G, and offered features like the App Store, Maps with GPS and push email. The update was free for iPhone users and $9.95 for iPod Touch users (with free iOS 2.x updates after).

The Evolution of iOS - iOS 3
Credit: Computerworld / Apple
iOS 3

iPhone OS 3 came with the iPhone 3G S and included new features like voice control; multimedia messaging; Spotlight search; a landscape keyboard; and (finally) cut, copy and paste functions. After Apple introduced the iPad in March 2010, iPhone OS became iOS. iOS 3 was free for iPhone users, but iPod Touch users still had to pay $9.95 (with free iOS 3.x updates after). When it became available, the iPad had iOS 3.2 pre-installed; as an incentive for iPod Touch users who still hadn’t updated to iOS 3, the price was reduced $4.95.

Evolution of iOS: iOS 2
Credit: Computerworld / Apple
iOS 4

iOS 4 came preinstalled with the iPhone 4 and iPad 2. Officially marketed as ‘iOS,’ it introduced wallpapers, multitasking, folders and FaceTime, and iBooks for iPad. For the first time with iOS 4, iPod touch users did not have to pay to upgrade. The iPhone 4 also became Apple’s first CDMA-capable phone that delivered iOS to Verizon users.

Evolution of iOS: iOS 5
Credit: Computerworld / Apple
iOS 5

Pre-packaged with the iPhone 4S, a week after the death of Steve Jobs, iOS 5 introduced Siri, Notification Center, iMessage, Reminders and Newsstand. iOS 5 became notable because it cut the computer cord -- users could activate and set up their devices wirelessly and out-of-the-box with over-the-air updates. iOS 5 also brought the introduction of iCloud and Twitter integration.

Evolution of iOS: iOS 6
Credit: Computerworld / Apple
iOS 6

iOS 6 was included with the iPhone 5 and iPad Mini, and parted ways with pre-installed Google Maps and YouTube, which users had to manually download from the App Store. iOS 6 included Apple’s own Maps app, introducing turn-by-turn navigation, as well as Facebook integration, Passbook and LTE support.

Evolution of iOS: iOS 7
Credit: Computerworld / Apple
iOS 7

After iOS 6 became infamous for its Maps controversy, Apple’s then-Senior Vice President of Design (now Chief Design Officer), Jonathan Ive took over redesigning the iOS after the departure of former Senior Vice President of iOS Software Scott Forstall. iOS 7 trashed its previous skeumorphic graphics and included a design overhaul with refined typography, new icons, translucency and layering. Prepackaged with the iPhone 5S, 5C, iPad Air and iPad mini 2, the flat OS included new features like Control Center, AirDrop for iOS, a revamped Photos app, iTunes Radio and CarPlay.

Evolution of iOS: iOS 8
Credit: Computerworld / Apple
iOS 8

iOS 8 came with the iPhone 6 and 6 Plus and the iPad Air 2. It built off of iOS 7 and contained new features like Apple Pay, a new Health app, HandOff, QuickType, Family Sharing, iCloud Drive, third-party keyboard support and (in mid-2015) Apple Music. iOS 8 became the first iOS to have public beta testing available outside of developers before its initial release.

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iOS 9

iOS 9 is designed to work with 3D Touch in the new iPhone 6S and 6S Plus. It also includes new features such as an updated Notes app to support drawing sketches and adding images, a revamped Maps app with transit directions in select U.S. cities and a News app, which replaces Newsstand and displays news from sources such as CNN, Wired and The New York Times. Passbook will be renamed Wallet and will support loyalty cards and gift cards. To coincide with the introduction of the iPad Pro, the iPad family will gain new features like Slide Over and Split View for enhanced multitasking; Picture in Picture to watch videos while in other apps; and shortcut support (cut, copy and paste) for wireless keyboards. iOS 9 improves battery time (up to one hour) and offers a Low Power Mode, a six-digit passcode for added security and Android migration. To combat devices with low storage, iOS 9 will be significantly smaller, and apps will automatically delete and then reinstall to accomodate the update.

Evolution of iOS: iOS 10
Credit: Apple
iOS 10

iOS 10 delivers a raft of changes to frequently used apps like Messages, better integration involving Siri and 3D Touch and more access to Apple apps for third-party developers. In iOS 10, many Apple apps can now be removed from the Home Screen just like any third-party app. There's a revamped Widgets screen that's accessed with a left-to-right swipe from the Home Screen, and Apple has changed the Lock Screen to give users quicker access to information and data without having to unlock a device. And the Maps app continues to evolve as Apple works to bring it closer to par with its Google counterpart. (Credit the work Apple did on the back end to improve database listings and directions.) Although there aren't big-name "wow" features, the overall combination of tweaks makes iOS 10 feel more cohesive and useful.