Mary One is a credit card, and the other one is a debit card. For you as the user it makes no difference, because all bunq cards work the same for you and the money is directly taken from your account without any credit line offered. But for the merchant they might be different (for example a car rental might only accept credit cards, or some other store might only accept debit cards). It completely depends on where you're using the cards for what, as card infrastructure varies a lot from country to country. Check out this page to compare our available cards here: https://together.bunq.com/d/12503 💡
