RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
Coupons.com - Coupons & Coupon Codes, Savings & Deals
GlassIt.co - Find discounts, without invasion of your privacy. Download Glass It Price Tracker mobile app or browser extension 🇺🇸
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
Pricy - Amazon price watch