Cookie policy

The short version: we set no tracking cookies. This page will grow the day that changes, and the change will be announced here before it happens.

Effective date: August 18, 2026.

What we use today

• Tracking cookies: none. No analytics cookies, no advertising cookies, no fingerprinting.
• Local preferences. Your browser may store small functional preferences on your device (such as a light/dark theme choice) using local storage. These never leave your device and identify nothing.
• Hosting essentials. Our host (Cloudflare) may set strictly necessary cookies for security purposes, such as distinguishing humans from abusive bots.

What may change

We plan to add privacy-respecting analytics and, eventually, clearly labeled advertising. Both can involve cookies. When they arrive, this page will list exactly what is set, by whom, and how to opt out, and where the law requires it you'll be asked for consent first.

Managing cookies

Every modern browser lets you view, block, and delete cookies in its settings. Blocking cookies will not break our calculators; they don't need any.

Questions: contact us. Related reading: our privacy policy.