Paribus - Find out for free if online stores owe you a refund!
Wikibuy - Find lower prices at other sellers while you shop on Amazon
Lolli - Earn bitcoin when you shop online
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Slice Watch - Get an email when an item you've added drops in price 💸
CouponFollow Cently - Coupons at Checkout is a browser plugin for Chrome, Firefox, Internet Explorer, and Safari that...