Privacy policy

Last updated September 23, 2026

Calculators. Everything you type into a calculator stays in your browser. We don't send it to a server or store it.

Newsletter. If you subscribe, your email address is stored by our newsletter provider (beehiiv) so we can send you emails. You can unsubscribe at any time using the link in every email.

Analytics. We may use privacy-friendly, cookie-free analytics to count page visits. We do not sell personal information.

Links. Some links go to other sites, such as our Etsy shop. Their privacy policies apply there.

Contact. Reply to any newsletter email to reach us.