Terms of use

Welcome to Yuen Chi Lab. By using this site and service you agree to these terms. If this English version differs from the Chinese version, the Chinese version prevails.

1. The service

Yuen Chi Lab provides Qimen Dunjia and Zi Wei Dou Shu charting tools, a dictionary, and readings compiled from classical rules (“Yuen Chi Readings”).

2. For reference only

Readings are traditional-culture reference material. They are not a guarantee or a prediction, and they do not replace medical, legal, financial, investment or other professional advice. For questions about health, lawsuits or investments, consult a qualified professional. You are responsible for your own decisions.

3. Accounts

You must give a valid email address and keep your sign-in method secure. Each person should use one account; we may remove credits or accounts obtained through fake or multiple accounts.

4. Public beta and payment

Qimen charting and Yuen Chi Readings are free during the public beta, which ends on 31 December 2026. The price of Yuen Chi Readings will be announced by 1 December 2026, and nothing will be charged automatically. Credits collected during the beta never expire.

Zi Wei Dou Shu charts and previews are free; the full reading, the PDF chart book, AI questions and the Qimen extras (Boost directions, Couple chart, House chart reading and Date selection) are charged once, in HKD, at the prices on the pricing page, with no subscription or automatic renewal. Payments are handled by Stripe and we never receive your card number. Refunds are covered by our refund policy.

5. Intellectual property

The software, text, reading content and design of this site and service belong to Yuen Chi Lab. The classical texts themselves are in the public domain. Do not copy, resell or bulk-extract the service's content by automated means without our permission.

6. Limitation of liability

To the extent the law allows, Yuen Chi Lab is not liable for any loss arising from your use of, or reliance on, any reading.

7. Changes to these terms

We may change these terms from time to time; continuing to use the service means you accept the changed terms.

8. Governing law

These terms are governed by the laws of the Hong Kong Special Administrative Region.

9. Contact

Questions? Email [email protected].