AmzScope - Find profitable products for sale on Amazon in one click, relying on statistics instead of intuition
Helium 10 - Our software contains multiple Amazon seller tools to help you find high ranking keywords, identify trends, spy on competitors, & optimize product listings.
Inventory Spy - Spy how many products remain on any Amazon Product’s offer listing page.
DataHawk.co - DataHawk software platform provides Amazon analytics tools for sellers and vendors to increase sales, optimize margins, gain insights, and boost productivity.
AMZScout - AMZScout extension will help you make a decision about picking a niche based on the actual data, not intuition.
Jungle Scout - Amazon product research made easy.