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IPhone OS

iOS
IOS logo.svg
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iOS 10 running on an iPhone 7
Developer Apple Inc.
Written in C, C++, Objective-C, Swift
OS family Unix-like, based on Darwin (BSD), macOS
Working state Current
Source model Closed source
Initial release June 29, 2007; 9 years ago (2007-06-29)
Latest release 10.3.2 (14F89/14F90)(May 15, 2017; 2 days ago (2017-05-15))
Marketing target Smartphones, tablet computers, portable media players
Available in 40 languages
Update method iTunes or OTA (iOS 5 or later)
Platforms
Kernel type Hybrid (XNU)
Default user interface Cocoa Touch (multi-touch, GUI)
License Proprietary software except for open-source components
Official website www.apple.com/ios/

iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that presently powers many of the company's mobile devices, including the iPhone, iPad, and iPod Touch. It is the second most popular mobile operating system globally after Android. iPad tablets are also the second most popular, by sales, against Android since 2013.

Originally unveiled in 2007 for the iPhone, iOS has been extended to support other Apple devices such as the iPod Touch (September 2007) and the iPad (January 2010). As of January 2017, Apple's App Store contains more than 2.2 million iOS applications, 1 million of which are native for iPads. These mobile apps have collectively been downloaded more than 130 billion times.

The iOS user interface is based upon direct manipulation, using multi-touch gestures. Interface control elements consist of sliders, switches, and buttons. Interaction with the OS includes gestures such as swipe, tap, pinch, and reverse pinch, all of which have specific definitions within the context of the iOS operating system and its multi-touch interface. Internal accelerometers are used by some applications to respond to shaking the device (one common result is the undo command) or rotating it in three dimensions (one common result is switching between portrait and landscape mode). Apple has been significantly praised for incorporating thorough accessibility functions into iOS, enabling users with vision and hearing disabilities to properly use its products.


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