Privacy

What we collect

Calculator inputs stay on your device. They are not sent to our servers. There is no account system and no newsletter signup on these pages.

We use PostHog (EU cloud) for anonymous analytics: which pages are viewed and which calculators are used. It is configured not to set cookies or store anything on your device, and the numbers you type into calculators are never sent. If we add a cookie-based tool later, this page will say so.

Standard server logs from Cloudflare may include IP address, user agent and requested URL for security and reliability. We do not sell personal data.

Ads and affiliates

If we later show ads or affiliate links, third parties may set their own cookies. We will update this page when that happens.

Last updated: 1 November 2026.