Interest free credit cards get a lot of, well, interest from financially savvy types. Basically, they give you the flexibility to spend money on credit (and possibly earn rewards points) and pay no interest at all, for a certain period of time.Read more
Interest free credit cards are offered to new customers as an incentive for switching credit cards. Some credit cards will have interest free rates for purchases but you can also get intro rates when you transfer a balance from another credit card. A 0% purchase rate, for example, lets you make purchases on your credit card without a charge for a set period of time.
There are indeed. Some cards will revert to high cash advance rates for balances not paid off within the interest free period. And most cards don't apply the intro period to such things as cash advances.