Privacy
Privacy policy
Last updated .
The short version
The numbers you type into our calculators never leave your device unless you choose to send them to an AI assistant (see below). All calculations run in your browser. We don't have accounts and we don't ask for your name, email or loan details.
Shareable links
When you use a calculator, your inputs are added to the end of the page address, after a "#", so you can bookmark or share the result. Browsers never send the part after "#" to any server, including ours, and it stays on your device unless you choose to share the link. Anyone you share it with will see those numbers.
Asking an AI about your results
Calculators have an optional "Ask an AI about these results" section. It shows the exact message, built from the numbers on your screen, and you can edit it first. Nothing is sent until you click:
- Copy for any AI puts the message on your clipboard. It stays on your device until you paste it somewhere.
- Open in ChatGPT, Claude or Perplexity opens that service with the message filled in, which sends it to that company. Their privacy policies apply, not ours.
The message never includes hidden instructions. What you see in the box is everything that's shared.
Hosting and basic logs
The site is served by Cloudflare. Like any web host, Cloudflare processes technical data such as IP addresses to deliver pages and block attacks. We may use Cloudflare Web Analytics, which counts page views without cookies and without tracking you across sites.
Advertising
We don't show ads yet. If we add them, this policy will be updated first, and where the law requires it we'll ask for your consent before any advertising cookies are set.
Emails
If you email us, we use your message only to reply, and we don't add you to any list.
Contact
Questions about privacy: [email protected].