Privacy Policy
Last updated 2026-07-22
The short version
SellerSaysis a calculator and reference site. You don't create an account, we don't set cookies, and we don't run advertising or analytics trackers. The numbers you type into our tools are processed in your browser and are not sent to us.
What stays on your device
If you use the save feature (the "Commerce Passport"), your saved business details — such as country, currency, prices, and volumes — are stored in your browser's localStorage on your own device. They never reach our servers. You can erase them at any time by clearing your browser's site data for this domain.
What our host processes
The site is hosted on Vercel. Like any web host, Vercel processes standard server logs (IP address, user agent, requested URL) to deliver pages and protect against abuse. We don't use these logs to identify or profile visitors. See Vercel's privacy policy for how they handle infrastructure data.
If this ever changes
If we add analytics or any feature that collects data (for example, feedback forms or saved-link sharing), this policy will be updated first, with the date above changed and the new processing described plainly.
Contact
Privacy questions or requests: forrestgangqin@gmail.com.