Standard credit cards, often called vanilla or plain vanilla cards, are the most basic of the types of credit cards, as they do not offer rewards and are pretty straightforward in their terms.
Unsecured cards are what most people think of when they think of credit cards. These cards allow you to spend up to a set limit without putting up any form of collateral.
Credit cards are a great way to build credit, but it may be difficult to get approved for credit cards if you have bad credit. In these situations a secured credit card is a nice option.