Contact

YoCalc is built and maintained by an independent developer. If a calculator gives you a result that looks wrong, a formula needs a second look, or you just want to suggest a new tool, I'd like to hear about it.

There's no contact form on this page — everything on YoCalc, including this page, runs without a server, so email is the most reliable way to reach me. I read every message and try to reply within a few days.