Pricing
Free charting. No paid plans.
Every calculator is free and works without sign-up. A free account only adds saving and sharing.
Guest
$0 forever
No account
Calculate now- BaZi Four Pillars, Day Master, Ten Gods, elements, luck pillars
- Zi Wei, Liu Yao, Mei Hua, Qi Men, Almanac
- True solar time and historical DST
- Export JSON / print, save on this device
- Save to an account and share links
Free account
$0 forever
Sign in with Google
Sign in- Everything in Guest
- Save charts and birth profiles
- Share links with hidden birth date/city by default
- Delete saved data at any time
- Optional AI explanations of the chart facts (when enabled)
No payment is collected anywhere on this site. If that changes, prices will appear here first — see the refund policy.
FAQ
Pricing questions
Is it really free?
Yes. There is no paid plan, trial or card form on this site today. All calculators work without an account.
Will you charge in the future?
If paid features are ever added, prices will be published on this page before anything is charged, and the core charting will stay free. See the refund policy.
Why do I need an account to save?
Saved charts are stored on our server and tied to your Google sign-in so only you can see or delete them. Without an account you can still save on this device.
What are AI explanations?
An optional plain-language explanation generated only from the calculated chart facts, with references back to them. It never changes the chart, and it is offered only when the feature is enabled on the server.