Redeem an Apple Gift Card or a download code on Mac
If you receive an Apple Gift Card or a download code, you can redeem it in the App Store manually or using the Mac camera (if the gift card has a box around the code). See the Apple Support article What type of gift card do I have?
Redeem a gift card with the download code
Go to the App Store app
on your Mac.Click your name in the bottom-left corner (or click Sign In if you’re not signed in).
Click Redeem Gift Card in the top-right corner, then enter the download code or the code from your gift card.
Redeem a gift card with your Mac camera
If you have a gift card with a box around the download code, you can use the built-in camera on your Mac to redeem the card.
Go to the App Store app
on your Mac.Click your name in the bottom-left corner (or click Sign In if you’re not signed in).
Click Redeem Gift Card in the top-right corner.
Click Use Camera, then hold the gift card 10 to 18 centimetres from the camera. Make sure the code area is near the centre of the preview area, then hold the card steady until it’s redeemed.