Privacy Policy
Last updated: March 17, 2026
This website does not collect any personal data. Below is a detailed explanation of how the site works with respect to your privacy.
Browser-only calculations
All calculations run entirely in your browser (client-side). No data you enter in the forms — principals, rates, terms or anything else — is sent to any server. Your numbers never leave your device.
localStorage
We use localStorage solely to save form values
between sessions, so you don't have to re-enter them every time you visit a calculator. This data
is stored only on your device and is never shared with anyone. You can clear it at any time by
clearing the site data in your browser settings.
Cookies
This site does not use cookies of any kind: no session cookies, no tracking cookies, no third-party cookies.
Analytics and tracking
We do not use any analytics service (Google Analytics, Plausible, etc.) or any other user behaviour tracking tool.
Advertising and third parties
There is no advertising on this site. We do not share any data with third parties because we have no data to share.
Hosting infrastructure
The site is hosted on Vercel. Vercel may log basic technical access data (IP address, browser, URL) as part of normal network infrastructure, in accordance with their own privacy policy. This site does not have access to those logs.
Contact
If you have any questions about this privacy policy, you can reach me via Ko-fi.