Privacy Policy

Runs entirely in your browser — your numbers never leave this page.

How it works

The short version: we collect almost nothing.

Your inputs stay yours. All calculations happen locally in your browser. Input values are never transmitted to us.
Recently-used list is stored only in your own browser's local storage. You can clear it any time via your browser settings.
Analytics & ads: we may use privacy-respecting analytics and third-party advertising (e.g. Google AdSense). Those providers may set cookies per their own policies.

Questions: use the contact page.