helium10 is considered as one of the most powerful software tools for Amazon sellers. It is a software which is power-packed with dozens of tools that helps Amazon sellers to check out high ranking keywords, Spy on competitors, and optimizing products listings. You have to choose helium10 for product research, Listing optimization, Keyword research, keyword tracking, Product launches, refunds, Competitor spying, and many more. Helium 10 is integrated with tools various tools like a Black box, Xray, Magnet, Cerebro, Frankenstein, Scribbles, Keyword tracker, Index checker, Alerts, Inventory protector, Refund genie, Trendster, Profits, and Follow-up. You have to pay $97 for platinum plan & $197 for the diamond plan.