Can I use an iTunes gift card to purchase credits for a game app that I have downloaded?

The iTunes card was a gift and would much rather use it then my account

iTunes Store credit can be used to make in-app puchases.

Have you already redeemed your iTunes Gift Card? If not, refer to the steps in the article:

Redeeming iTunes Gift Cards and content codes

http://support.apple.com/kb/HT1574

Once you have redeemed your card, any items purchased on your account(excluding gifts) will be automatically charged to the remainder of the store credit until the balance reaches $0.00. If a purchase exceeds the amount of the store credit, the balance can be paid with a credit card.

Not sure if you can, I've added £50 to my i-Tunes account and when then made an in-app purchase, the £50 is still in my account but my card has been charged for the full amount.

I know Apple use a delayed method on charging, so money doesn't go straight out, so I will wait to see if they use the gift card and then take the remainder from my card, if not then I'll assume that you can't use credit for in-app purchases.

Ok you can use it for in-app purchases, just had the reciept through and it took the gift card first 🙂

I redeemed a gift card and see the balance on my account but when I made an in app purchase, my bank card was charged. Both were on the same apple ID

I'm having the same problem