Ocean KDP Lens: BSR, Sales & Royalty Calculator

BSR, sales and royalty estimates on Amazon book, best-seller and search pages. Only reads Amazon pages, only when you click.

Ocean KDP Lens adds a clean research panel to Amazon book pages, so you can judge a book or niche in seconds. On every book page: • Best Sellers Rank and category ranks • Price, page count, rating, reviews and publication date • Estimated sales per day and month, and estimated monthly royalty (Kindle and print) • BSR history chart, recorded on your computer each day you view the book • Niche insight: demand, competition and price position On Amazon Best Sellers pages: • BSR, sales and royalty estimates on each book • A summary of the list: median price, reviews, rating and sales In the toolbar popup: • Research list with CSV export • Niche score from the books you save • Metadata checker for title, subtitle and the 7 keyword boxes • BSR, KENP and print cost / royalty calculators Privacy first: the extension only reads the Amazon page you have open. It sends no requests to Amazon in the background, and your research list stays in your browser. Sales and royalty figures are estimates based on public BSR tables and simplified KDP royalty rules. Not affiliated with Amazon. Made by Ocean Novel.