Privacy
Privacy policy
The short version: our calculators run entirely in your browser, we don't ask you to create an account, and we run no advertising or cross-site tracking. The detail below explains exactly what that means.
Last updated 24 July 2026.
Your calculator answers stay on your device
Every calculator computes your score in your browser from data already on the page. The answers you enter are never sent to us. So you can pick up where you left off, they're saved in your browser's local storage on your own device — you can clear them any time through your browser settings, and they never reach our servers.
Feedback you choose to send
If you use a correction or feedback form, we store the message you wrote, the page it was sent from, and the IP address of the request. We keep the IP only to spot and slow down spam. We don't ask for your name, email, or phone number, and we ask you not to include personal information in the message itself — a correction rarely needs it.
Cookies and logs
We use a small number of strictly necessary cookies — a session cookie and a security token that protects forms against cross-site request forgery. There are no advertising, analytics-profiling, or cross-site tracking cookies. Like almost any website, our hosting keeps standard server logs (for example the requesting IP address and browser type) for security and reliability; these are not used to build a profile of you.
What we never do
- We don't sell, rent, or trade your data.
- We don't gate a score behind an email or phone number, or pass your details to migration agents.
- We don't run third-party advertising networks on the site.
Questions or requests
If you'd like a feedback message you sent removed, or you have a question about this policy, reach us through the contact page. If we change how any of this works, we'll update this page and its date above.