Privacy Policy

Last updated: July 2026

SimpleFIRE is a one-person project (see the full story on the About page), and this policy is written the same way the rest of the site is: in plain English, without burying the important parts in legal boilerplate.

The calculators themselves don't collect anything

Every number you type into a calculator — your age, spending, savings, whatever — is processed entirely in your own browser using JavaScript. None of it is sent to a server, stored in a database, or seen by me. If you close the tab, it's gone, unless you use the "Copy link to my results" feature, which encodes your inputs directly into the URL you choose to share — nothing is saved on SimpleFIRE's end either way.

Analytics

SimpleFIRE uses Cloudflare Web Analytics to understand overall traffic — which pages get visited, roughly how many people are visiting, and what's broken. Cloudflare's Web Analytics is cookieless: it doesn't use tracking cookies or collect personal data, and it doesn't track you across other websites. It can't identify you individually.

Advertising and cookies

SimpleFIRE may show ads served through Google AdSense to help cover the cost of running the site. If and when ads are active, Google and its advertising partners may use cookies or similar technologies (like web beacons) to serve ads based on your visits to this and other websites, and to measure ad performance. Google may also use this data, including demographic and interest information, for ad personalization.

You can opt out of personalized advertising by visiting Google's Ads Settings, or opt out of a participating third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info.

Hosting

SimpleFIRE is hosted on Cloudflare Pages. Cloudflare may process standard technical data (like IP address and request logs) as part of delivering the site and protecting it from abuse — this is infrastructure-level logging common to virtually every website on the internet, not something SimpleFIRE itself collects or has access to for tracking purposes.

No accounts, no email collection

SimpleFIRE doesn't have user accounts, logins, or a newsletter signup. There's no email address collected anywhere on the site.

Children's privacy

SimpleFIRE is not directed at children under 13, and doesn't knowingly collect information from anyone in that age group.

Changes to this policy

If this policy changes — for example, once AdSense is actually live rather than just planned — this page will be updated and the "Last updated" date above will change accordingly. There's no separate notification list, since there's no email list to send one to.

Questions

This is a one-person project — see About for how to get in touch if something here is unclear or you think something needs fixing.