Plain Selling — Sales Estimator

Estimate monthly Amazon sales from a product page using its category Best Sellers Rank.

Research Amazon products without copying category names or Best Sellers Rank values between tabs. Plain Selling runs when you open it on a supported Amazon product page, prepares the available rank and category, and returns a modelled monthly-sales estimate. What you get: - Estimated monthly units - A likely sales range - A confidence level tied to the category model - Automatic marketplace and rank detection where Amazon exposes them - Manual category and rank controls when detection is unavailable - Coverage across supported Plain Selling marketplaces and calibrated categories Plain Selling produces modelled estimates, not observed sales or guarantees. The extension requires a free Plain Selling account and uses the same daily allowance as the website. Subscribers receive their normal fair-use access. Privacy is deliberately narrow. The detector runs only after you click the extension, and only on the active tab. It sends the selected marketplace, category, and rank over HTTPS to Plain Selling to build an estimate. It does not receive Amazon cookies, Amazon account data, payment details, browsing history, or the raw page contents.