The rules,
stated plainly

01Acceptance

This agreement governs your use of the ichingxy.cn website and the Zhiming Yixue application (together, "the Service"), operated by Guicang Studio ("we", "us").

Downloading, installing, registering for or using the Service means you have read and accepted these terms in full. If you disagree with any part, please stop using the Service and uninstall the app.

If you are under 18, use the Service with a parent or guardian's consent and supervision. If you are under 14, a guardian must accept these terms on your behalf.

02The service

• Website — product information, system explanations, downloads, changelog, guestbook
• App — divination charting, medical-I Ching lectures, learning games, face reading

Most app functions — charting, lectures, games, face reading — run fully offline, with algorithms and reference data bundled on your device. Membership content, account sync and corpus updates require a connection.

We may adjust features, module counts and lecture schedules as the product evolves; significant changes will be announced on the site in advance.

03Accounts and security

• Registration requires a working phone number or email address for verification and recovery
• Accounts are personal — do not lend, transfer or sell them
• Keep your password safe; losses from poor custody are yours to bear
• If your account is compromised, email us immediately so we can freeze it
• When the same account signs in on multiple devices, the most recent session applies

04Membership and payment

4.1 Plans

Benefits are as listed on the membership page. Price changes do not affect a subscription period already paid for.

4.2 Payment and invoices

Payments are processed by third-party providers. We never store card numbers or payment passwords. For an invoice, email service@ichingxy.cn with your order number.

4.3 Refunds

• Membership is a digital service that takes effect immediately on payment
• A first subscription may be refunded in full within 7 days provided no member-only content has been accessed
• Renewals, and subscriptions where member content has been used, are generally non-refundable; if the Service is unavailable for an extended period through our fault, we refund pro rata for unused days
• Send refund requests by email with the order number; we respond within 7 working days

4.4 Trial abuse

Repeated registration on the same device or identity to obtain additional free trials may result in the trial being revoked and the accounts restricted.

05Acceptable use

You agree not to:

• Post content that breaks the law, endangers national security, or promotes hatred or cult activity
• Post pornography, violence, gambling, fraud, infringing material or other people's private information
• Use the guestbook for advertising, referral links, flooding or personal attacks
• Impersonate another person or a member of this studio
• Reverse-engineer, decompile, crack, modify, repackage or strip attribution from the app
• Scrape the site or its APIs with crawlers, scripts or other automation at scale
• Interfere with server operation or attempt unauthorised access to systems or data

Breaching these rules may lead to content removal, feature limits, or suspension and termination of your account, without refund. Unlawful conduct is referred to the authorities.

Guestbook specifics are in the guestbook rules.

06Intellectual property

The following are compiled, developed or lawfully held by Guicang Studio and protected under copyright, trademark and international conventions:

• Eight-Line Guicang — the eight-line casting method, the nine-column parameter schema, the primary / changed / postnatal three-chart structure and its algorithms
• Eight-Line Xinyi — the eight-row line structure, dual five-phase scheme, the sixteen-hexagram Guicang sequence and its derivation rules
• Six Hexagrams of a Name and the Guicang-adapted five-grid method (84-number system)
• The Guicang corpus — hexagram and stem-branch imagery databases, terminology, lecture notes
• The sixteen Guicang hexagrams — sequence, names, glosses
• The Tie Kou Chen fragment scroll and its associated text and setting
• All interface design, icons, illustrations, copy and code in the app and on this site

You may use the material for personal study and research, citing the source and linking back to this site.

You may not, without written permission, copy, republish, adapt, compile or translate the material for commercial purposes, use it to train AI models, or use it to build a competing product.

Content you post in the guestbook remains yours; you grant us a non-exclusive licence to display, reply to and archive it on this site. The licence ends when you ask us to delete the post.

07Disclaimers

7.1 Nature of the content

All chart results, hexagram readings, fate analysis, face reading, wellness notes, date selection and naming references are research into traditional Chinese culture, and entertainment. They carry no scientific predictive force and do not constitute:

• Medical diagnosis, treatment plans or medication advice
• Legal advice or litigation strategy
• Investment advice, financial planning or securities guidance
• A basis for marriage, fertility or career decisions

For health, legal and major financial matters, consult a qualified professional.

7.2 Face reading and wellness modules

The face module generates reference text from landmark detection and traditional rules. It is not a medical examination. Wellness, cycle and five-movements content is cultural knowledge and cannot replace a doctor. Seek medical help when unwell.

7.3 Consequences of use

Any decision you make based on this content, and its consequences, are your own. We accept no liability for direct or indirect loss arising from reliance on it.

7.4 Availability

We work to keep the Service stable but do not promise it will be uninterrupted or error-free. Outages caused by networks, devices, force majeure or third-party services carry no compensation obligation, though we will restore service and inform you as soon as we can.

7.5 Third-party links

This site may link to third parties such as app stores and payment providers. Their content and privacy practices are their own responsibility.

08Changes and termination

• We may add, change or retire features; significant changes are announced 30 days ahead
• If the Service as a whole is discontinued, we give 60 days' notice and refund the unused portion of memberships pro rata
• You may stop using the Service at any time and uninstall the app; closing your account erases local and server records
• Membership benefits remain non-refundable where an account is terminated for breach

09Disputes

The formation, validity, interpretation and performance of these terms are governed by the laws of the People's Republic of China (excluding the law of the Hong Kong SAR, Macao SAR and Taiwan region).

Disputes should first be resolved by good-faith negotiation. Failing that, either party may bring proceedings in the competent people's court at the defendant's domicile.

If any provision is held invalid or unenforceable, the remaining provisions stay in force.

10General

• These terms, together with the Privacy Policy and guestbook rules, form the complete agreement; these terms prevail on conflict
• Our failure to enforce a right is not a waiver of it
• Updates are reflected in the "Last updated" date above; continued use means acceptance
• These terms are published in Simplified Chinese, Traditional Chinese and English. If the versions differ, the Simplified Chinese version prevails

Contact: service@ichingxy.cn　·　Operator: Guicang Studio