Short version: I don't collect anything about you. No account, no tracking, no cookies, no ads. Your numbers never leave your browser.
I built this to be useful, not to harvest data, so there isn't much of a policy to write. There's no database on my end, no analytics watching what you do, and nothing about your session that I could look up even if I wanted to. The calculator runs entirely in your browser.
No logins or email sign-ups. No analytics or tracking pixels (no Google Analytics, no Meta pixel, none of that). No advertising and no ad cookies. And nothing gets sold or shared, because there's nothing being gathered to sell in the first place.
When you run the calculator, your most recent inputs are saved in your browser's local storage so they're still there next time you visit. That copy sits on your device and only your device. To wipe it, hit Reset to defaults on the calculator, or clear your browser's site data for this domain.
When you copy a share link, your inputs get packed into the part of the URL after the #. Browsers never send that fragment to a server, so when someone opens your link the scenario gets rebuilt entirely in their browser. Nothing is uploaded, and nothing lands on my end. The link holds only the numbers you typed (no name, nothing identifying), and the calculator reads those values strictly as data and never runs them as code.
The page pulls its typeface (DM Sans and DM Mono) from Google Fonts. As with any embedded web font, your browser making that request means Google can see your IP address and that a page loaded. That's the only third-party resource on the site. No other outside scripts, no other services.
If any of this changes, the date up top changes with it. Questions? Get in touch.
Not financial advice. Consult a fee-only fiduciary CFP for personalized guidance.