Privacy Policy

Last updated June 2026.

What we collect

MarketDiff collects minimal, anonymous usage data: which guide pages are viewed, which listings are opened, and which outbound eBay links are clicked. We attach a random, anonymous id stored in your browser so we can count unique sessions. We do not ask for or store your name, email, or address.

How we use it

This data is used only in aggregate, to understand which guides are useful and to improve the site. We do not sell personal data.

Third parties

When you click an eBay link you leave our site and eBay's own privacy policy applies. See our Cookie Policy for the cookies and local storage we use.

Contact

Questions about privacy? Get in touch.