Terms of Use

These Terms of Use (the "Terms") set out the conditions for using "HSK 3.0 Practice Tests" (the "Site") provided by Third Door LLC ("we"). By using the Site, you agree to these Terms.

1. About the Site

The Site offers original practice questions that we created to match the HSK 3.0 format. They are not past or official HSK questions and are not endorsed by the HSK organizers.

2. Copyright

1. All rights, including copyright, in the questions, passages, choices, explanations, translations and other text, pictures, audio, design and software on the Site (the "Content") belong to us or to the rightful third parties.
2. You may use the Content on the Site for your own study.
3. You may not copy, republish, modify, distribute, transmit, sell or otherwise use any part of the Content without our prior written permission. This includes using it in textbooks, question books, apps or websites, and as training data for AI.
4. "HSK" and other names are trademarks or registered trademarks of their respective owners and are used only to describe the test format.

3. Prohibited conduct

• Using the Content in breach of section 2
• Automatically collecting information from the Site in bulk (scraping, etc.)
• Overloading or gaining unauthorized access to the Site or the grading server, or circumventing usage limits
• Using the AI feedback feature for anything other than checking your writing
• Any illegal or otherwise inappropriate conduct

4. AI feedback

1. The Site uses AI (Claude, provided by Anthropic, PBC) to check your writing. Feedback and scores are for reference only; we do not guarantee their accuracy or that they match actual HSK scoring.
2. AI feedback has a daily usage limit. When you reach it, please grade yourself.
3. See the Privacy Policy for how your writing is handled.

5. Mock test scores

Mock test scores and pass/fail results are estimates we set for reference. Official HSK 3.0 scoring and pass marks have not been published, and we do not guarantee actual test results.

6. Disclaimer

1. We take care to keep the Content accurate but do not guarantee its accuracy, completeness or usefulness.
2. Except in cases of our intentional misconduct or gross negligence, we are not liable for any damage arising from your use of, or inability to use, the Site.

7. Changes to the Site

We may change, suspend or end the Site without notice.

8. Changes to these Terms

We may change these Terms as needed. Changes take effect when posted on this page.

9. Governing law and jurisdiction

These Terms are governed by the laws of Japan. The district court with jurisdiction over our head office has exclusive jurisdiction in the first instance over any dispute relating to the Site.

10. Contact

Third Door LLC
ku-obe@outlook.jp

Effective: November 16, 2026