Privacy

Last updated 2026-10-22

This website does not use cookies, advertising or tracking. Browsing the site and using the calculators collects no personal information. We collect personal information only if you send us a message.

Calculators

All calculations happen in your browser. The numbers you type are never sent to us or to anyone else, and nothing is stored.

Hosting

The site is hosted on Vercel. Like any web host, Vercel may keep ordinary server logs such as IP address and requested page for security and operations. We do not use them to identify visitors.

Buying on Gumroad or Payhip

All purchases are made on Gumroad or Payhip, not on this site. When you press Buy, the marketplace's checkout opens on our page or in its own page. We load the marketplace's code only when you press Buy, not before. The marketplace collects the information needed to take payment, send your receipt and deliver the file, under its own privacy policy. We do not receive your card details, billing address or payment information. We may see your name or email address if you contact us about your order, and we use it only to help you.

Messages you send us

If you use the contact form, we receive your message, your email address and the name or order number you choose to give. We use them only to answer you and keep them privately for as long as needed to handle your request.

Changes

No analytics are running today. If we add analytics or an email list, this page will say exactly what is collected and why before it starts.