The short version
Our calculators run entirely in your browser. The numbers you type into them are not sent to us or stored anywhere.
What we collect
- Contact form: if you send us a message, we receive your name, email address and message, and use them only to reply. We keep messages for up to 24 months.
- Server logs: like most websites, our web server records basic technical data (IP address, browser type, pages requested, time) for security and troubleshooting. Logs are kept for a limited time.
What we don’t do
- We don’t sell or rent personal information.
- We don’t run advertising trackers or third-party analytics scripts on this site at present. If that changes, this page will be updated first.
Cookies
We don’t set cookies. Our hosting and security provider (Cloudflare) may set strictly necessary security cookies.
Your choices
To ask what we hold about you, or to have a message you sent deleted, use the contact page.