Everything that governs how this site works, in one place. Each one is written to be read, not to be scrolled past.
Before you act on anything here
- Medical disclaimer. What this site is and is not, what a calculator result actually means, and what to do in an emergency. The one to read first.
- Editorial policy. Which sources we accept, how the calculators are built, how drafts are produced, and how corrections are handled.
Your data
- Privacy policy. What we collect, who else sees it, how long we keep it, and how to get a copy or have it erased.
- Cookie policy. Everything stored on your device, who put it there, and how to change your choice.
Using the site, and buying from it
- Terms of use. What you may do with our content, what we ask of comments, and the limits of what we promise.
- Terms of sale. For the paid four-week plan: price, delivery, refunds and the money-back guarantee.
- Affiliate disclosure. How the site earns, and what we will not do for money.
- DMCA and copyright. How to report an infringement, in either direction.
Who we are
- About. What the site is for, who writes it, and how it is paid for.
- Contact. One address, and it is read.
If any of these pages contradicts another, tell us through the contact page and we will fix the one that is wrong. Each page carries the date it was last changed.