Privacy

Last updated October 21, 2026.

Calculators

Everything you type into a calculator stays in your browser. Values may appear in the page address so you can share a result; we do not store them.

Beta waitlist

If you join the beta we store your email address, the platforms and sales range you choose (optional), the page you signed up from, your country as detected by our host, and the date. We use this only to contact you about the FlipMath beta and to decide what to build. We do not sell it. Ask us to delete it at any time by replying to any email we send.

Hosting and analytics

The site is hosted on Cloudflare Pages. Cloudflare processes technical request data (such as IP addresses) to deliver and protect the site. If we enable analytics, it will be Cloudflare Web Analytics, which does not use cookies.