Automatic downloads and downloading previous purchases require iOS 4.3.3 or later on iPhone 3Gs or later, iPod touch (3rd generation or later), iPad, or iPad mini; iOS 5 or later on iPhone 4 (CDMA model); or a Mac or PC with iTunes 10.3.1 or later. Previous purchases may be unavailable if they are no longer in the iTunes Store, App Store, or iBooks Store. Downloading previous movie purchases requires iTunes 10.6 or later, iOS 5 or later, or Apple TV software 4.3 or later. Not all previously purchased movies are available for downloading to your other devices. Download iTunes free.
iCloud requires iOS 5 or later on iPhone 3Gs or later, iPod touch (3rd generation or later), iPad, or iPad mini; a Mac computer with OS X Lion v10.7.5 or later; or a PC with Windows 7 or Windows 8 (Outlook 2007 or later or an up-to-date browser is required for accessing email, contacts, and calendars). Some features require iOS 7 and OS X Mavericks. Some features require a Wi-Fi connection. Some features are not available in all countries. Access to some services is limited to 10 devices.