The RedLaser App is an awesome and free shopping tool developed by eBay which can be used to scan merchandise barcodes in order to help you find the best price possible from either online or local retailers. RedLaser will not only pontentially save you a ton of cash by sorting through thousands of online and local retailers, there are actually a bunch of additional benefits to the App. For example, you can scan almost any food item and get a plethora of information including product ratings and critical allergen details. RedLaser will also show all local results and stores on a map, making it easy for you to purchase in-app via PayPal and pick a store to have your item shipped to, or which place has the best deal locally. The App will scan all major retail barcodes including UPC, EAN, UPC-E, EAN-8, and QR codes.