BdSave$ for iPhone

From Bad Dog Applications:

Ever find yourself standing in a store looking at what appears to be a great buy? How do you know? dSave$ is a remarkable iPhone tool that allows you to instantly: Find the range and lowest prices of an item. See what buyers say about the product. Save Favorites for later comparison and annotation. Bookmark common searches for future use. If available, look at the complete technical specifications. Free apps don't always show the lowest prices. BdSave$ was developed with only one goal in mind--find the user the best price fast. You will probably pay for BdSave$ with your first purchase over $50 using comparative pricing. BdSave$ is easy to use. Type in the bar code number, ISBN number or the name of the product and receive quick results. To make it even easier, BdSave$ has a Quick Lookup Directory to find common items from 15 product categories, with over 150 sub-categories and 3,000 sub-sub categories.

Version 1.7 is a major overhaul to code and includes many enhancements to UI.