Well, these are the two terms that we generally use to refer to bank cards that are offered by the banks to us. These two cards are used by many people around the world. I think that credit card offers you the ability to buy products on credit. Such kind of cards should not be used because you have to pay insane amounts of interest percentage at the end and this could increase the risk of bad debts. Debt cards are used to purchase products and the cash is deducted from your main account. Am I right?