To set options for iTunes Store, go to Settings > iTunes & App Store. You can:

  • View or edit your account. Tap your Apple ID, then tap View Apple ID. To change your password, tap the Apple ID field.

  • Sign in with a different Apple ID. Tap your account name, then tap Sign Out. You can then enter a different Apple ID.

  • Turn on iTunes Match. If you’re a subscriber, tap iTunes Match so you can access your music on iPhone anywhere.

  • Turn off automatic downloads. Tap Music, Books, or Updates. Content updates automatically over Wi-Fi, unless you turn off the option in Automatic Downloads.

  • Download purchases over the cellular network. Turn on Use Cellular Data. Downloading purchases and using iTunes Match over the cellular network may incur carrier charges.