Quickly scan the barcode of a product with the iPhone camera and compare the prices at thousands of online retailers. Simply place the red line across the barcode in the camera image. The line will turn green for a second or two while the code is being read. You can later access the list of items you have scanned from any device, at your leisure, anonymously. Email the last item or the last 20.
iPhone OS 3.x
||Requires iPhone OS 3.1