iOS. The world’s most advanced mobile operating system.

iOS. The world’s most advanced mobile operating system. And the easiest to use.

With every iOS advancement come even easier ways to do everything. That’s what makes iOS years ahead of anything else. iOS 5 leaps even further ahead, bringing over 200 new features to iPhone 4S. Here are just a few of our favorites.
Learn more about iOS

Notification Center

It’s one place to see what’s new. Preview your latest texts, email messages, reminders, friend requests, and more.

iMessage

Send messages to any iPhone, iPad, or iPod touch running iOS 5. It’s unlimited. So you can say as much as you want.³

Twitter Integration

Sign in once under Settings and tweet directly from Safari, Photos, Camera, YouTube, and Maps.

Reminders

Create lists of things to do that you can check off as you go. Even add due dates and locations.

Photos

Crop, rotate, enhance, and remove red-eye from your photos. Right on your iPhone.

Camera Enhancements

Now you can access the Camera app right from the Lock screen. Just press the volume-up button, point, and shoot.

Newsstand

Find all your newspaper and magazine apps here. Even subscribe to something new. And read all about it. All from one place.

Safari

Reader displays web articles without ads or clutter. And Reading List lets you save article links to peruse later.

PC Free

You can activate and set up your iPhone wirelessly, right out of the box. Without the need for a Mac or PC.

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