iTunes in the Cloud
One of the reasons for having Apple devices is the iTunes Store. This store offers you lots of music, movies, apps, podcasts, and books that can be purchased or downloaded directly from your Apple devices. Since iCloud came out, Apple integrated iTunes Store content as part of the iCloud service. It's called iTunes in the Cloud.
Earlier, when you needed to synchronize your devices to get the same content that you've bought from the iTunes Store—whether it was music, movies, or even apps—and also when you tried to download content that you had already purchased on your iOS device, you would be charged again with the same price.
Now, iTunes in the Cloud keeps your purchased list and lets you download them all over again directly from your devices. You can also configure to automatically download content you've purchased to all of your devices.
iTunes in the Cloud supports music, movies, TV shows, podcasts, books, and apps. I recommend that you should use the latest version...