Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.

PriceComparator - ALL in 1 : Price, Product, Promotion, Social Media and Place Monitoring. Explore Big Data easily to improve your business. Usefull for Retailers and Suppliers. Try it, win a lot, you'll love it !

Fetchee - Fetchee is a free price tracking wish list app that works with all online stores worldwide.

PRICEFY.IO - Monitor your competitors' products and prices with ease. No single URLs to paste or proxies to rotate, just put your competitor's domain and monitor his product's price daily.

Keepa - Price history charts and the option to be alerted on price drops for all Amazon sites.

Prisync - Prisync is a competitor price tracking and monitoring software for all sizes of e-commerce companies worldwide.