Shiyi

Terms of Service

Effective November 11, 2026 Also published in Chinese. For users of the service in English, this English version applies.

Thank you for using Shiyi (at shiyi.linquan.app, “the service”). The service is run by Linquan, a sole proprietorship registered in Ontario, Canada (“we”, “us”). By creating an account, buying reading credits or otherwise using the service, you agree to these terms. If you do not agree, please do not use the service. Before you buy anything, please read sections 5 and 6 (reading credits, payment and refunds).

How we handle your personal information is set out in the Privacy Policy.

1. What the service offers

• Free: the Calendar (solar terms, the twelve double-hours in true solar time, and “This day” for each day), casting a BaZi chart (the chart itself, with an outline for each month and year), and casting a hexagram with the original hexagram and line texts. These are worked out by our code in your browser by fixed rules. They need no account and use no reading credits. Telling you when to push ahead or hold back, and which hours are good or call for care, is based on the chart profile that a natal chart reading creates.
• Per reading: hexagram readings and natal chart readings. These are written on request by a large language model from your chart, your question and the rules of traditional Chinese metaphysics. Each one uses reading credits (see section 5).
• Once you are signed in, your charts, readings and divination records are kept in your account, so you can see them on any device.

2. What the content is

All of the service’s content, including chart results, the day almanac’s favourable and unfavourable activities, the hexagram and line texts, and every reading, is a collection of, and reference to, traditional Chinese metaphysics. It is offered for cultural interest, entertainment and self-reflection:

• it is not medical, psychological, legal, financial, investment or other professional advice, and should not take the place of such advice;
• it does not foretell any certain outcome; we offer no services to “change your luck” or “dissolve misfortune”, and sell no such items;
• for important decisions about your health, relationships, finances or legal matters, consult a qualified professional;
• if you are in crisis or thinking about harming yourself, contact your local emergency services right away (911 in Canada), or call or text 988, the Suicide Crisis Helpline in Canada.

3. Readings written by AI

Readings such as hexagram readings and natal chart readings are written on request by Anthropic’s Claude model from the information you give. Facts such as the hexagram, the Four Pillars, chart structure, solar terms and true solar time are worked out by our code first and passed to the model with your request. What the model writes may contain errors or inconsistencies, or differ from the classical texts and from other practitioners’ views. Please treat it as one possible reading offered for reference, not as a promise of any fact or outcome.

4. Accounts

• You sign in with a code sent to your email address; signing in for the first time creates your account. Each email address has one account.
• You must be at least 18 years old to create an account and buy reading credits.
• Please keep your email account secure: anyone who can receive your sign-in codes can sign in to your account. If you find that someone else is using your account, contact us as soon as you can.
• Before drawing up a chart or requesting a reading for someone else, please get their permission: their birth time and birthplace are their personal information.

5. Reading credits, prices and payment

1. What uses credits: each hexagram reading uses 1 credit, and each natal chart reading uses 2 credits. The first hexagram reading on a new account is free, once per email address: aliases of the same address (such as a plus suffix) count as the same address, and signing up again with the same address after deleting your account does not make it free again. After an account’s first purchase (of any pack), its first natal chart reading is free; if all of your purchases have been fully refunded or taken back through a chargeback, it is no longer free.
2. Prices and tax: reading credits are bought once, in packs, currently CA$6 for 6, CA$20 for 25 and CA$30 for 45. Prices are in Canadian dollars and do not include tax: if you buy in Canada, GST/HST for your province or territory is added, and the tax is shown on the payment page so you can see the total before you pay; if you buy from outside Canada, no tax is added. The prices shown on the Pricing page and the payment page when you pay are the ones that apply.
3. Payment: you pay on a payment page hosted by Stripe; we never see or store your card details. Once payment succeeds, the credits are normally added to your account at once, and we email a purchase confirmation to your account’s address as your copy of the agreement for that purchase; please keep it. The service has no subscription, no automatic renewal and no automatic charges.
4. No expiry: purchased and free credits never expire and can build up. They can be used only in the account they were given to; they cannot be transferred and have no cash value (except for refunds under section 6).
5. Use and return of credits: credits are taken, as set out in item 1, when you submit a reading. If that reading is not written (for example, because of a service error or a timeout), the credits are returned to your account automatically, and a free reading stays available. Once a reading has been written, the credits count as used. A reading is one way of reading traditional metaphysics, and whether it suits you is not a ground for returning the credit. If a written reading is plainly faulty (blank, garbled, or not about the chart you chose), contact us; once we have checked, we will give the credit back.
6. Price changes: we may change prices and packs in future; this does not affect credits you have already bought.

6. Refunds

• Full refund within seven days if unused: within 7 days of a purchase, if none of the credits from that purchase have been used, you can ask for a full refund by writing to [email protected]. Please give your account’s email address and the date of payment (attaching the receipt Stripe sent you helps). Once the free natal chart reading that follows your first purchase has been written, that purchase counts as used. The money goes back to the original payment method; how long it takes to arrive depends on your card issuer, usually 5 to 10 business days. Once the refund is made, the credits from that purchase are taken back from your account.
• Apart from the case above, and except where the law requires otherwise, purchased credits are not refundable. Nothing in this section affects any rights you have under applicable consumer protection law (including Ontario’s Consumer Protection Act).
• If you have a question about a charge, please contact us first; it is usually settled faster than a chargeback through your card issuer. While a chargeback is under way, the credits from that purchase are held back from your account; if some of them have already been used, your balance will go below zero and you will need to top it up before using credits again. If the chargeback closes without the money being returned to you, the held credits are restored.

7. Fair use

You agree not to:

• call the service’s interfaces in bulk by automated means (scripts, crawlers and the like), or get around or interfere with its rate limits, bot checks and authentication;
• sign in with someone else’s email address, or use the sign-in page to send codes to other people’s email addresses;
• sign up in bulk with several email addresses or aliases to collect the new-account gift again and again;
• resell or transfer reading credits or accounts, or use the service’s output to offer paid fortune-telling or consulting to others;
• enter unlawful content into the service, or use it for unlawful activity.

To keep the service available to everyone, its interfaces have usage limits. If you seriously or repeatedly breach this section, we may restrict or end the service for the account concerned, and bar the email addresses involved from signing in again.

8. Your content and the readings written for you

• The charts and questions you enter are yours. You allow us to store and process them to provide the service, and to send the parts a reading needs to the model service described in section 3 (see the Privacy Policy for details).
• Readings written for you are for your personal use; you are free to save and share them. Please do not present them to others as professional advice.

9. Intellectual property

The service’s interface design, text and program code belong to us or to the respective rights holders. The hexagram and line texts of the Book of Changes and other classical texts are in the public domain.

10. Availability and changes to the service

The service is run and maintained by one person. We do our best to keep it running and its calculations correct, but we do not guarantee that it will be uninterrupted or free of errors; it may pause for maintenance, faults or events beyond our control. We may add, change or stop some features, and will announce major changes on the website in advance.

If we decide to close the service for good, we will announce it on the website and by email at least 30 days in advance, and refund the unused purchased credits in your account at the per-credit price you paid.

11. Limitation of liability

To the fullest extent permitted by applicable law:

• we are not liable for any indirect, incidental or consequential loss arising from the use of, or inability to use, the service;
• any decision made in reliance on the service’s content is your own responsibility (see section 2);
• our total liability to you is limited to the amount you paid us in the 12 months before the claim.

Nothing in this section excludes or limits liability that cannot be excluded or limited under applicable law.

12. Termination

• You can delete your account at any time on the Account page. Doing so deletes the charts, readings, divination records and remaining reading credits in your account, and cannot be undone. If you have a purchase from the last 7 days with no credits used, please ask for a refund under section 6 before deleting your account. Payment records are kept separately for tax purposes; see section 6 of the Privacy Policy.
• If you seriously breach these terms, we may suspend or close your account. If we close it for any other reason, we will refund the unused purchased credits in your account.

13. Changes to these terms

If these terms change in substance, we will announce it on the website and update the effective date on this page; changes to prices, payment or refunds will also be sent by email at least 14 days in advance. Changes do not affect credits you bought before them. Continuing to use the service after a change takes effect means you accept the revised terms.

14. Governing law

These terms are governed by the laws of the Province of Ontario and the federal laws of Canada that apply there, excluding their conflict-of-laws rules. These terms contain no mandatory arbitration clause, do not limit your right to bring a claim in court, and do not exclude any rights you have under the consumer protection laws where you live.

15. Contact

Operator: Linquan

Address: 121 Rickson Ave, Guelph, ON N1G 4T9, Canada

Phone: +1 510-516-6880

For questions about these terms, write to: [email protected]