Privacy Policy

The short version

All fee calculations run in your browser. Nothing you type is uploaded, stored, or logged.

What we do NOT collect

• Your numbers — prices, shipping, payouts: processed locally, never transmitted.
• Accounts, sign-ins, or any personal information you do not volunteer by email.

What IS collected (by third parties)

• Google Analytics 4 — anonymous usage events (which calculator was opened, generic counters). Tool inputs are never sent.
• Microsoft Clarity — anonymised session insights; Clarity masks text input by design.
• Advertising — this site may display ads served by Google AdSense and/or Adsterra, which may use cookies for measurement and personalization where permitted.

Email and changes

If you write to us, your address is used to reply and nothing else. Policy changes get posted on this page. Last updated: 26 September 2026.