Privacy

Your numbers

Everything you type into a calculator or the worksheet is processed in your browser. It is not sent to us and not stored on a server. The share link keeps your numbers in the web address, so anyone you send it to can see them.

What we collect

• Usage events: a random visitor id kept in your browser, the page path, the referring site, campaign tags in the link, the country (from the network), a rough device type, and actions such as running a calculation, downloading a PDF, or opening the pricing page. No amounts are included.
• Google Analytics (GA4): we use Google Analytics for anonymous usage statistics: which pages are viewed and which buttons are used, with the plan chosen. It never receives your email, name, file names or anything you type into a calculator. We also keep our own first-party event log, which holds the events described above.
• Email: only if you type it at checkout or in the contact form. It is used to reply to you or to send the one message about checkout you asked for.
• Network address: stored only as a salted hash, to limit abuse.

What we do not do

• No advertising code, no ad networks, no selling of data. Google Analytics sets its own first-party cookies for the anonymous statistics described above.

Third parties

• Cloudflare hosts the site and its database and may measure page views in aggregate.
• Google processes the Google Analytics (GA4) statistics. See Google’s own privacy policy.

To delete your email, write to us from the contact page.