Wikibuy is a Google Chrome & Mozilla Firefox extension that finds lower prices at other sellers while you shop on Amazon. Simply navigate to any product page on Amazon and Wikibuy will start working automatically. Wikibuy checks other sellers to see where else your product is sold and displays results with accurate total prices including tax, shipping, and any coupons that apply. When you buy with Wikibuy, every purchase comes with our .
We also have an iOS app—just search 'Wikibuy' in your App Store to download.
Wikibuy also tests coupon codes automatically at checkout and lets you know when cashback is available at participating retailers.