Privacy Policy

The short version

Calculators run entirely in your browser. The numbers you type are not sent to our servers — they stay on your device and, if you choose to share a result, are encoded into the link you copy. We collect only aggregate, privacy-respecting analytics to understand which tools are useful.

What we collect

• Aggregate usage analytics (pages viewed, tools used) without selling personal data.
• Standard server logs from our hosting provider, used for security and reliability.
• A local preference, stored on your device, remembering your cookie choice.

Cookies & advertising

We use cookies for analytics and may show advertising. Ad and measurement partners may set their own cookies; see our cookie policy for details and how to opt out.

Your choices

You can decline non-essential cookies in the banner, clear local storage at any time, and use the calculators without an account. Questions? Reach us through the address listed in our about page.