RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Price2Spy - Price2Spy is a price monitoring, pricing analytics, and repricing tool, meant to help eCommerce professionals keep an eye on their competitors or retailers.
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Skuuudle - Discover, match and monitor your eCommerce competitors.
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
Prisync - Prisync is a competitor price tracking and monitoring software for all sizes of e-commerce companies worldwide.