RoyaltyPeek reads the Amazon book page you're already on and shows estimated sales and royalties in a tiny corner card. No calculator tab. No copy-paste.
The free calculators are all websites. RoyaltyPeek lives where you actually research — on the page.
Everything you need to size up a title, in one glance.
Open any Amazon book and the estimate is already there. No switching tabs, no pasting a rank into a website.
Estimates show as ranges with a clear basis label. It tells you what it assumed instead of pretending to be exact.
Set your real Kindle royalty and print payout in Settings so the estimate matches your actual margins.
It reads only the page you have open. No Amazon API, no tracking, no analytics. Your browsing never leaves your machine.