ITunes Gift Cards are designed to refill your account in the digital store iTunes Store. But it’s worth remembering that these cards can be used in the App Store, iBooks Store and to pay for a subscription to Apple Music.
After activating the card, the funds are credited to the account in the store and you can use them to purchase any virtual content.
Buy games, watch your favorite movies, read books, everything is available for the money of gift cards. You can also make purchases within games and applications.
To replenish the balance of your iTunes Store account, you must enter the 16-digit iTunes Gift Card numeric code on the redemption code page in your account. After that, with the help of funds on the balance, you can make purchases in the iTunes Store.