iOS

The AT&T iPhone 5 home screen in iOS 6
Company / developer	Apple Inc.
Programmed in	C, C++, Objective-C
OS family	UNIX-like (BSD)
Working state	Current
Source model	Closed source
Initial release	June 29, 2007; 6 years ago
Latest stable release	iPhone 3GS, 4 and 4S iPad 2, 3 and 4 iPad Mini iPod Touch 4th and 5th generations 6.1.3 (Build 10B329) (March 19, 2013; 5 months ago) iPhone 5 6.1.4 (Build 10B350) (May 2, 2013; 4 months ago)  Apple TV 2nd and 3rd generations 5.3 (Build 10B809) (June 19, 2013; 2 months ago)
Latest unstable release	7.0 Beta 6 (Build 11A4449d) (August 15, 2013; 19 days ago)
Available language(s)	34 languages
Supported platforms	ARM (iPhone, iPod, iPad, iPad Mini, and 2nd gen. and higher Apple TV), Apple A4, Apple A5, Apple A5X, Apple A6, Apple A6X
Kernel type	Hybrid (XNU)
Default user interface	Cocoa Touch (multi-touch, GUI)
License	Proprietary EULA except for open-source components
Official website	www.apple.com/ios/