Privacy Policy

This site is designed to run without user accounts or a database. Calculator inputs stay in browser state and are not submitted to us.

The watchlist uses localStorage in your browser. Saved items are not synced to a server and may disappear if you clear site data or use another device.

Outbound affiliate or official links may take you to third-party websites with their own privacy policies.

If analytics, email delivery, server-side watchlists or accounts are added later, this policy should be updated before collection begins.

Do not enter secrets, seed phrases, private keys, full card numbers, tax identifiers or sensitive identity documents into calculators or watchlist notes.