When it comes to flat-rate cash-back cards, it's hard to beat 2% back, especially when the card is one of the few in this category to come with a bonus for new cardmembers.

You get bonus rewards of 3% cash back at U.S. supermarkets, U.S. gas stations and U.S. online retail purchases. Terms apply. If groceries, gas and online shopping are significant parts of your ...

Must enter ISA6BOOST promo code and deposit money within 7 days. New customers only, 4.55% otherwise. The bonus only lasts for six months and not one year ...