Terms of Service
These Terms of Service (these "Terms") constitute an agreement between you and Beijing Zeqi Technology Co., Ltd. ("we," "us," or "our"), the developer of Tangdou Go (糖豆围棋), regarding your use of Tangdou Go products and services. Tangdou Go includes the iOS app, the Android app, the website, and the WeChat Mini Program (collectively, the "Service"), which provide a Go (Weiqi) community, game record (SGF) sharing, online play and spectating, leaderboards, and AI analysis.
Please read these Terms carefully before you download, install, sign in to, or otherwise use the Service. By using the Service, you confirm that you have read, understood, and agree to be bound by these Terms. If you do not agree with any part of these Terms, please stop using the Service immediately.
1. Acceptance and Changes to These Terms
- Your use of the Service — including browsing, registering, signing in, posting content, or playing games — constitutes your acceptance of these Terms.
- We may update these Terms in response to changes in laws or in our business. Updated Terms will be posted on this page with a revised update date.
- After an update, your continued use of the Service constitutes acceptance of the revised Terms. If you do not agree, please stop using the Service.
- Where a change materially affects your rights, we will notify you through in-app or on-site notices.
2. Accounts and Sign-In
- Identity verification is performed by issuing a sign-in binding code through the WeChat Mini Program. You may need to link your WeChat account or mobile number.
- Accounts are owned by us; subject to these Terms, you are granted a right to use your account.
- You are responsible for keeping your account, binding code, and device secure. Activities performed through your account are deemed to be your own, and you bear the consequences.
- You may not transfer, rent, lend, or sell your account, or otherwise allow others to use it.
- If you believe your account has been used without authorization or is otherwise at risk, please contact us immediately.
3. Your Responsibilities and Conduct
When using the Service, you must comply with the laws and regulations of the People's Republic of China as well as these Terms, and you agree that you will not:
- post or distribute information prohibited by law, including content that endangers national security, or that is violent, pornographic, gambling-related, fraudulent, or defamatory;
- infringe the rights of others, including intellectual property, reputation, privacy, and portrait rights;
- use cheats, scripts, crawlers, or other abnormal means to inflate scores or rankings, mass-register accounts, spam posts, or otherwise undermine fair play;
- damage, disrupt, or attack the Service or its networks and servers, or reverse engineer, decompile, or crack the Service;
- use the Service for unlawful activities or for any commercial purpose without our permission.
4. Content You Post
- You retain the intellectual property rights in posts, comments, images, and game records (SGF) that you publish through the Service, or such rights belong to the original owner.
- To operate, display, and promote the Service, you grant us a free, non-exclusive license to store, display, distribute, and compile the content you post. This license ends within a reasonable period after you delete the content, except where laws require otherwise or where the content has already been distributed to third parties.
- You must ensure that you have the rights to the content you post, and you must not post anything that infringes the rights of others or violates the law.
- We have the right, but not the obligation, to review content and may remove, block, or restrict the display of content that violates these Terms.
5. Game Records, Matches, and AI Analysis
- Matches you play and game records you upload may be used for leaderboard calculation, review display, live spectating, and AI analysis.
- AI analysis, review conclusions, and rating estimates are generated automatically and are for reference only. They do not constitute professional advice of any kind.
- You may not use match data or AI analysis results for gambling, cheating, or any other unlawful purpose.
6. Intellectual Property
- The software, interface design, icons, text, and trademarks of the Service (including the "Tangdou Go" name and logo) belong to us or our licensors.
- Subject to these Terms, we grant you a limited, non-exclusive, non-transferable license to use the Service for personal, non-commercial purposes.
- Without our prior written consent, you may not copy, modify, reverse engineer, extract source code, distribute the Service, or create derivative works.
7. Third-Party Services
The Service may include services or components provided by third parties, such as WeChat sign-in and the Mini Program, app store distribution, push notifications, and analytics. These third-party services are governed by their own terms and privacy policies, which you must also comply with.
8. Personal Information
We collect, use, store, and protect your personal information in accordance with our Privacy Policy. By using the Service, you agree to such processing and confirm that the information you provide is accurate.
9. Network Connection and Charges
- You are responsible for providing and maintaining a working network connection. Availability in offline or low-signal conditions is not guaranteed.
- Data charges, roaming fees, and other fees charged by your mobile carrier are your responsibility.
10. Protection of Minors
If you are under 14 years old, please read these Terms together with your guardian and use the Service only with your guardian's explicit consent. We process minors' information collected with guardian consent in accordance with applicable laws and our Privacy Policy.
11. Updates, Changes, and Termination
- We may release updates to maintain or improve the Service, but we do not guarantee ongoing updates or compatibility with every device or operating system version.
- We may modify, suspend, or discontinue all or part of the Service at any time, and will provide advance notice where reasonably possible.
- If you violate applicable laws or these Terms, we may restrict, suspend, or terminate your access to the Service without liability.
- You may stop using the Service at any time and request account deletion as described in our Privacy Policy.
12. Disclaimer
The Service is provided on an "AS IS" and "AS AVAILABLE" basis. To the maximum extent permitted by law, we disclaim all warranties, express or implied, including fitness for a particular purpose, accuracy, reliability, non-infringement, uninterrupted operation, and error-free operation. AI analysis, leaderboards, and rating estimates are for reference only.
13. Limitation of Liability
To the maximum extent permitted by law, we are not liable for indirect, incidental, or consequential losses arising from your use of, or inability to use, the Service, including loss of data, business interruption, device damage, or reputational harm. Where mandatory law provides otherwise, that law prevails.
14. Governing Law and Dispute Resolution
- These Terms are governed by and construed in accordance with the laws of the People's Republic of China, excluding conflict-of-law rules.
- Disputes arising from these Terms or the Service shall first be resolved through friendly negotiation; failing that, either party may bring an action before the competent people's court at the developer's place of business.
15. Miscellaneous
- If any provision of these Terms is held invalid or unenforceable, the remaining provisions remain in full effect.
- Section headings are for convenience of reading only and do not affect the meaning of these Terms.
- If you have any questions or suggestions about these Terms, please contact us.
16. Contact Us