Terms of Service

Welcome to HappyPinyin. By accessing or using our website and services, you agree to be bound by these Terms of Service. Please read them carefully before using the platform.

1. Acceptance of Terms

By accessing or using HappyPinyin, you agree to these Terms of Service and our Privacy Policy. If you do not agree to these terms, please do not use our services.

2. Description of Service

HappyPinyin is a free educational platform for learning Chinese Pinyin. We provide interactive practice tools, progress tracking, and spaced repetition-based learning to help users master Pinyin pronunciation and recognition.

3. User Accounts

• You may create an account by signing in with Google OAuth.
• You are responsible for maintaining the security of your account.
• You must provide accurate information when creating your account.
• You may not share your account with others or allow unauthorized access.
• You must notify us immediately of any unauthorized use of your account.

4. Acceptable Use

When using HappyPinyin, you agree not to:

• Use the service for any unlawful purpose
• Attempt to gain unauthorized access to our systems
• Interfere with or disrupt the service or servers
• Scrape, copy, or redistribute our content without permission
• Use automated tools to access the service (bots, scrapers, etc.)
• Impersonate others or provide false information
• Harass, abuse, or harm other users

5. Intellectual Property

All content on HappyPinyin, including text, graphics, logos, icons, images, audio, software, and educational materials, is the property of HappyPinyin or its content suppliers and is protected by intellectual property laws.

The Chinese character data is based on publicly available educational curricula. You may use the service for personal, non-commercial educational purposes. You may not reproduce, distribute, or create derivative works from our content without permission.

6. User Content

Any data you input into the platform (such as practice responses) is used solely to provide you with personalized learning experiences. We do not claim ownership of your learning data, but we may use anonymized, aggregated data to improve our service.

7. Disclaimer of Warranties

HappyPinyin is provided "as is" and "as available" without warranties of any kind, either express or implied. We do not guarantee that the service will be uninterrupted, error-free, or completely secure. We make no warranties regarding the accuracy or completeness of the educational content.

8. Limitation of Liability

To the maximum extent permitted by law, HappyPinyin shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of or inability to use the service, even if we have been advised of the possibility of such damages.

9. Free Service

HappyPinyin is currently provided free of charge. We reserve the right to introduce premium features or modify the service in the future, but we will notify users of any significant changes.

10. Modifications to Service

We reserve the right to modify, suspend, or discontinue the service (or any part thereof) at any time, with or without notice. We shall not be liable to you or any third party for any modification, suspension, or discontinuation of the service.

11. Changes to Terms

We may update these Terms of Service from time to time. We will notify you of any changes by posting the new Terms on this page and updating the "Last updated" date. Your continued use of the service after any changes constitutes acceptance of the new Terms.

12. Termination

We may terminate or suspend your account and access to the service immediately, without prior notice, for conduct that we believe violates these Terms or is harmful to other users, us, or third parties, or for any other reason at our discretion.

13. Governing Law

These Terms shall be governed by and construed in accordance with applicable laws, without regard to conflict of law principles.