Secured and unsecured cards can be used to pay for goods and services. However, a secured card requires you to open and maintain a savings account as security for your line of credit; an unsecured card does not.

The required savings deposit for a secured card may range from a few hundred to several thousand dollars. Your credit line is a percentage of your deposit, typically 50 to 100 percent. Usually, a bank will pay interest on your deposit.

In addition, you also may have to pay application and processing fees, sometimes totaling hundreds of dollars. Before you apply, be sure to ask what the total fees are and whether they will be refunded if you're denied a card. Typically, a secured card requires an annual fee and has a higher interest rate than an unsecured card.

This information is adapted from "Choosing and Using Credit Cards" published by the Federal Trade Commission.