Quick Scan pRO
Deal or no deal?

This handy iPhone app is great for bargain hunters who constantly wonder whether they’re missing out on a better deal online. The app uses your iPhone’s camera to look at bar code and QR codes and searches for the item at a number of online sites including the big ones such as Amazon, Best Buy and eBay. You can sort your results by price, whether the item is new or used, and you can have the app keep a history of past searches or favorite items. The app promises it will pay for itself quickly, based on the savings you’ll find through price comparisons. 99 cents, for iOS.

— Hayley Tsukayama