What are some alternatives?
When comparing Camelcamelcamel and Reviewbox, you can also consider the following products
Savelist - Found products you want but not ready to buy?
Jungle Scout - Amazon product research made easy.
Keepa - Price history charts and the option to be alerted on price drops for all Amazon sites.
Sellics - Sellics helps you to boost Your Amazon sales.
PriceSpy - PriceSpy helps you save money when shopping online.
A2X - A2X makes it easy for businesses to account accurately for their Amazon marketplace sales.