http://www.apple.com/iphone/ios/
With its easy-to-use interface, amazing features, and rock-solid stability, iOS is the foundation of iPhone. And even as others try to catch up, the technologies and features built into iOS keep iPhone years ahead.
With its easy-to-use interface, amazing features, and rock-solid stability, iOS is the foundation of iPhone. And even as others try to catch up, the technologies and features built into iOS keep iPhone years ahead.