Make in app purchases with gift card
When I attempt to make an in app purchase it asks for add payment method. I don’t want to use my credit card. Ideas?
You should be able to choose "no payment method." If you can't remove your last payment method or use no payment method with your Apple ID - Apple Support provides some information which may explain why you can't select "None."
Change, add, or remove Apple ID payment methods - Apple Support also provides some advice.