Terms of Service

Last updated: 4 November 2025

1. Introduction

Welcome to huatong.app ("we," "our," or "us"). These Terms of Service ("Terms") govern your access to and use of our website, mobile application, and related services (collectively, the "Service").

By accessing or using our Service, you agree to be bound by these Terms. If you disagree with any part of these Terms, you may not access the Service.

2. Acceptance of Terms

By creating an account, accessing, or using huatong.app, you acknowledge that you have read, understood, and agree to be bound by these Terms and our Privacy Policy. If you are using the Service on behalf of an organization, you represent and warrant that you have the authority to bind that organization to these Terms.

3. Description of Service

huatong.app is an online language learning platform designed to help users learn Mandarin Chinese. Our Service includes, but is not limited to:

  • Vocabulary training and spaced repetition
  • Pinyin listening comprehension exercises
  • Pronunciation practice with feedback
  • Goal setting and progress tracking
  • Educational content and materials
4. User Accounts

To access certain features of the Service, you must create an account. You agree to:

  • Provide accurate, current, and complete information during registration
  • Maintain and update your account information to keep it accurate
  • Maintain the security of your password and account
  • Accept responsibility for all activities under your account
  • Notify us immediately of any unauthorized use of your account
5. User Conduct

You agree not to:

  • Use the Service for any illegal purpose or in violation of any laws
  • Violate or infringe upon the rights of others
  • Transmit any harmful code, viruses, or malicious software
  • Attempt to gain unauthorized access to the Service or related systems
  • Interfere with or disrupt the Service or servers
  • Copy, modify, or create derivative works of the Service
  • Reverse engineer, decompile, or disassemble any part of the Service
  • Use automated systems to access the Service without permission
6. Intellectual Property

All content, features, and functionality of the Service, including but not limited to text, graphics, logos, icons, images, audio clips, digital downloads, and software, are the exclusive property of huatong.app or its content suppliers and are protected by European and international copyright, trademark, and other intellectual property laws.

You may not reproduce, distribute, modify, create derivative works of, publicly display, publicly perform, republish, download, store, or transmit any of the material on our Service without our prior written consent.

7. Subscription and Payment

Some features of the Service may require payment. When you subscribe to a paid plan, you agree to:

  • Pay all fees associated with your subscription
  • Provide accurate billing information
  • Authorize us to charge your payment method
  • Understand that subscription fees are charged in advance

You may cancel your subscription at any time. Refunds are provided in accordance with applicable European consumer protection laws, including your right to withdraw within 14 days of purchase if you are a consumer in the European Union.

8. Termination

We reserve the right to suspend or terminate your account and access to the Service at our sole discretion, without notice, for conduct that we believe violates these Terms or is harmful to other users, us, or third parties.

Upon termination, your right to use the Service will immediately cease. All provisions of these Terms that by their nature should survive termination shall survive, including ownership provisions, warranty disclaimers, and limitations of liability.

9. Disclaimer of Warranties

The Service is provided "as is" and "as available" without warranties of any kind, either express or implied. We do not warrant that the Service will be uninterrupted, secure, or error-free, or that defects will be corrected.

To the fullest extent permitted by applicable law, we disclaim all warranties, express or implied, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement.

10. Limitation of Liability

To the fullest extent permitted by applicable European law, in no event shall huatong.app, its affiliates, or their respective officers, directors, employees, or agents be liable for any indirect, incidental, special, consequential, or punitive damages, including loss of profits, data, use, goodwill, or other intangible losses, resulting from your use of the Service.

Our total liability for any claims arising from or related to the Service shall not exceed the amount you paid us in the 12 months preceding the claim, or €100, whichever is greater.

11. European Consumer Rights

If you are a consumer in the European Union, you have certain legal rights under EU consumer protection law, including:

  • The right to withdraw from a contract within 14 days of purchase (cooling-off period)
  • The right to receive goods or services that conform to the contract
  • The right to a full refund if goods or services are not provided as described
  • The right to access dispute resolution mechanisms

Nothing in these Terms affects your statutory rights as a consumer under European law.

12. Dispute Resolution

If you are a consumer in the European Union, you may submit complaints through the European Commission's Online Dispute Resolution platform at https://ec.europa.eu/consumers/odr.

For disputes that cannot be resolved through the ODR platform, these Terms shall be governed by and construed in accordance with the laws of [Your Jurisdiction], without regard to its conflict of law provisions.

13. Changes to Terms

We reserve the right to modify these Terms at any time. We will notify users of material changes by posting the new Terms on this page and updating the "Last updated" date.

If you are a consumer in the European Union, material changes will require your consent. Continued use of the Service after changes become effective constitutes acceptance of the new Terms.

14. Contact Information

If you have any questions about these Terms, please contact us at:

Email: [Your contact email]
Address: [Your business address]