What are some alternatives?
When comparing Coupons At Checkout and ChameleonJohn, you can also consider the following products
Honey.is - Honey is a beautiful and intuitive social intranet for your company. Built to connect global teams, share resources, simplify team conversations, and support employee workflows.
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Wikibuy - Find lower prices at other sellers while you shop on Amazon
Dealspotr - Dealspotr is like Wikipedia for deals.
Shopper.com - Uber for Coupon Codes
CouponNDeal - I regularly checking this out now.