Top free money saving iPhone apps

This post on Coupon Cravings is so cool I just had to share it. Blogger Erin Gifford blogged about one money saving iPhone app each day for the past 30 days. The link above takes you to her summary of all 30 iPhone apps that save money. Each app is free, of course!

The apps help you save money on groceries, compare retail prices while you shop, find the best gas price, and track down local coupons. Now if only we had a WalletPop app to add to the list. Which apps help you save money? Tell us!