Terms of Service

1. Agreement to Terms

By accessing or using Hanzi Rush ("the Service"), you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use our Service.

2. Description of Service

Hanzi Rush is a Chinese character learning application that helps users master HSK vocabulary through speed drilling and spaced repetition. The Service includes:

• Interactive character training with various modes
• Progress tracking using the Speed-FSRS algorithm
• HSK 1-6 vocabulary content
• Account synchronization across devices

3. User Accounts

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

• Provide accurate and complete information
• Maintain the security of your account
• Notify us immediately of any unauthorized access
• Accept responsibility for all activities under your account

4. Free and Premium Tiers

Hanzi Rush offers both free and premium access:

• Free Tier: HSK 1-2 content available forever at no cost
• Premium Tier: Full access to HSK 3-6, advanced features, and additional modes

Premium subscriptions are billed according to the plan you select. You may cancel at any time, and access will continue until the end of your billing period.

5. Acceptable Use

You agree not to:

• Use the Service for any illegal purpose
• Attempt to gain unauthorized access to the Service or its systems
• Interfere with or disrupt the Service
• Use automated scripts or bots to access the Service
• Resell or redistribute the Service content without permission
• Create multiple accounts to abuse free tier limitations

6. Intellectual Property

All content, features, and functionality of the Service are owned by Hanzi Rush and are protected by international copyright, trademark, and other intellectual property laws.

The HSK vocabulary list is based on the official Hanyu Shuiping Kaoshi standards. Chinese character data is compiled from publicly available linguistic resources.

7. User Content

You retain ownership of any content you create (such as custom study lists, if available). By submitting content to the Service, you grant us a non-exclusive license to use, display, and distribute that content within the Service.

8. Disclaimer of Warranties

The Service is provided "as is" without warranties of any kind. We do not guarantee that:

• The Service will be uninterrupted or error-free
• All character data is 100% accurate
• Using the Service will guarantee passing HSK exams

9. Limitation of Liability

To the fullest extent permitted by law, Hanzi Rush shall not be liable for any indirect, incidental, special, consequential, or punitive damages resulting from your use of the Service.

10. Account Termination

We reserve the right to suspend or terminate your account if you violate these Terms. You may delete your account at any time through the Settings page or by contacting support.

11. Changes to Terms

We may modify these Terms at any time. We will notify you of significant changes by posting a notice on the Service. Continued use after changes constitutes acceptance of the modified Terms.

12. Governing Law

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

13. Contact Information

For questions about these Terms of Service, please contact us:

• Email: support@hanzirush.com