AmzChart is a powerful product research tool for Amazon. 

We currently only cover the United States.

We just have the English version, but if you log in with google chrome, you can translate it into other languages with the Google Translate extension. 

We do not support changing the email address. If you want to change it, you can just register with a new email address, it also means you have two accounts. 

If you register with email and password, you can just click the "Forgot password" on the log-i page, then it will send an email for you to reset a new password. 

If you have already registered with Gmail and password, you can still log in via Google account, but they're two different accounts. 

If you are an Amazon seller, you can find winning products with this tool and get real-time market insight. 

If you are an Amazon seller, you can find winning products with this tool and get real-time market insight. 

It's best-sellers rank on Amazon. 

You can enter the Keywords, Brands, or ASIN first, then filter with "Current BSR", "Total Reviews" and "Star Ratings", etc. It will present the list of active products for your reference. 

You'd better set Keywords, Brands, or ASIN first, then choose other filters for advanced search. 

You can go to "Market Insight" and make an advanced search with Keywords, Brands, or ASIN and other filters, it will present the product listings under the specific category. 

No, currently it is totally FREE.