Who builds this
530A Model is an independent, open-source public-good project — one person, no company behind it, nothing for sale.
The person
The site is built and maintained by Zach Eikenberry as a personal project. All of the code — the calculator engine, this site, the API, and the test suites — is public at github.com/zach-eikenberry/530A.
Why it exists
The 530A is a brand-new kind of account, and most of what families first read about it is either marketing or guesswork. This project takes the opposite approach: verify every figure against primary sources, flag what isn't yet knowable, and let the math itself be checked by anyone.
What it will never do
- Sell ads, funds, or your attention — see why it's free.
- Collect personal data — your inputs never leave your device.
- Present an estimate as a promise.
Contact
Corrections and questions: open a GitHub issue or email [email protected]. Press inquiries: see the press page.