You can search for, browse, preview, purchase, and download music, ringtones, audiobooks, TV shows, movies, and music videos from the iTunes Store directly to iPhone. You can listen to audio or watch video podcasts from the iTunes Store, either by streaming them from the Internet or by downloading them directly to iPhone.
NOTE: The iTunes Store is not available in all regions, and iTunes Store content may vary across regions.
To access the iTunes Store, iPhone must be connected to the Internet. See How iPhone Connects to the Internet.
To purchase songs or write reviews, you need an iTunes Store account. By default, iPhone gets your iTunes Store account settings from iTunes. If you don’t have an iTunes Store account, or if you want to make purchases from another iTunes Store account, go to Settings > Store. See Store.
You don’t need an iTunes Store account to play or download podcasts.