aifora - Maximize profits with optimized and automated pricing and inventory management across all sales channels.

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

Competera - Competera is a price tracking tool for performance-oriented eCommerce retail and brands of all sizes worldwide.

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

Pricefx - Pricefx is the leading pricing software tool that helps users to manage their pricing strategy from gathering data and insights, to defining their plan, and finally to execution.

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