1. Open the Mac AppStore
  2. Click Redeem in the Quick Links section You will need to sign in with your AppleID
  3. Enter your gift or content code and press Redeem. If you havean iTunes Gift Card, use the16-digit code on the back of the card that begins with X
  4. After you redeem an iTunes Gift Card, your iTunes account balance will update
  5. If you redeemed a content code, the app will begin downloading