Privacy Policy

Last updated: July 2026

We collect no personal data. All calculations, analysis, and optimizations run entirely in your browser. Nothing is sent to our servers.

Third-Party Services & Cookies

We use Google AdSense to serve ads (pending approval). Google, as a third-party vendor, uses cookies — including the DoubleClick DART cookie — to serve ads based on your prior visits to this and other websites. You can opt out of personalized ads at https://www.google.com/settings/ads and https://www.aboutads.info/choices, and learn more at https://policies.google.com/technologies/ads. Until ads are enabled, no advertising cookies are set. See Google's Privacy Policy at https://policies.google.com/privacy.

Local Storage

We use localStorage only to remember your dark mode preference. This stays on your device and is not sent to any server.

No Tracking

No analytics, no tracking pixels, no fingerprinting. The only potential third-party code will be AdSense after approval — currently no ad cookies are set.

No User Accounts

There's nothing to sign up for and nothing to delete. We don't store anything about you.

Questions? Email runfps40@gmail.com.