Privacy policy

What data we collect

The tools on this site run entirely in your browser. The amounts and options you enter are not transmitted to our servers and are not stored. No registration is required to use the site.

Like every website, we collect basic technical usage data via Google Analytics (pages visited, device type, approximate country) to understand which content is useful.

Third-party advertising and cookies

This site shows advertising via Google AdSense. Google and its advertising partners may use cookies or similar identifiers to serve ads based on your browsing behaviour. You can manage your personalised advertising settings at adssettings.google.com.

Affiliate links

Some links to providers may earn us a commission. This never changes what you pay. Details on the page how we are funded.