It keeps your content up to date.
On every device you use.
Send unlimited messages to iPhone, iPad,
iPod touch, or Mac. From your Mac.
Mail, messages, reminders, alerts, and more.
See what’s new with you. All in one place.
Post to Facebook, Twitter, Flickr, and Vimeo.
Right from the app you’re in.
Send iMessages to iPhone, iPad, iPod touch, or another Mac. Get notifications. Go head-to-head against iOS gamers. They’re features you know, like you’ve never seen. Learn more
Built on a rock-solid UNIX foundation, OS X is engineered to take full advantage of the technologies in every new Mac. Learn more
Move your Mac even further ahead. Download OS X Mountain Lion from the Mac App Store today. Learn more
Over 200 new features in OS X Mountain Lion add up to one amazing Mac experience. Check out all the new features in OS X
You get the most out of iCloud when you set it up on all your devices. Set up iCloud on your Mac