At BizChinese, we take your privacy seriously. This Privacy Policy explains how we collect, use, protect, and share your personal information when you use our Chinese learning platform.
1. Information We Collect
We collect the following types of information:
Account Information:
- Email address (required for account creation and login)
- Password (encrypted and never stored in plain text)
Learning Data:
- Words you've learned and reviewed
- Learning progress and statistics
- Review schedules and mastery status
- Study session timestamps
Technical Information:
- Browser type and version
- Device information (mobile, tablet, or desktop)
- IP address (for security purposes)
2. How We Use Your Information
We use your information to:
- Provide personalized learning: Track your progress and customize your review schedule based on your learning patterns
- Sync across devices: Ensure your data is accessible on all your devices
- Improve our service: Analyze usage patterns to enhance features and user experience
- Send important updates: Notify you about account activity, new features, or service changes (you can opt out anytime)
- Maintain security: Detect and prevent fraudulent activities or unauthorized access
3. Data Protection & Security
We implement industry-standard security measures:
- Encryption: All data transmitted between your device and our servers is encrypted using SSL/TLS
- Secure storage: Your data is stored in secure, encrypted databases provided by Supabase
- Password protection: Passwords are hashed and salted, never stored in plain text
- Access controls: Strict internal access policies to protect your data from unauthorized access
Note: While we use best practices to protect your data, no method of transmission over the internet is 100% secure. We cannot guarantee absolute security.
4. Third-Party Services
We use the following trusted third-party services:
- Supabase: Database hosting and authentication services.View their privacy policy →
- Vercel: Hosting and content delivery (if applicable)
We do NOT:
- Sell your personal information to third parties
- Share your learning data with advertisers
- Use your data for purposes other than providing our service
5. Your Rights & Choices
You have the following rights regarding your data:
- Access: Request a copy of all personal data we hold about you
- Correction: Update or correct your account information at any time
- Deletion: Request deletion of your account and all associated data
- Data portability: Export your learning data in a standard format
- Opt-out: Unsubscribe from promotional emails (account-related emails may still be sent)
To exercise any of these rights, please contact us through your account settings or email us directly.
6. Data Retention
We retain your data as follows:
- Active accounts: Data is retained as long as your account is active
- Deleted accounts: Data is permanently deleted within 30 days of account deletion request
- Backup data: May remain in backup systems for up to 90 days
7. Cookies & Tracking
We use essential cookies to:
- Keep you logged in during your session
- Remember your preferences
- Ensure site functionality and security
We do NOT use third-party advertising cookies or tracking pixels.
8. Children's Privacy
Our service is intended for users aged 13 and above. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us with personal information, please contact us immediately.
9. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any significant changes by:
- Posting the new policy on this page
- Updating the "Last updated" date
- Sending an email notification (for major changes)
Your continued use of our service after changes indicates your acceptance of the updated policy.
10. Contact Us
If you have any questions, concerns, or requests regarding this Privacy Policy or your personal data, please contact us:
Email: support@bizchinese.cc
Response time: We aim to respond within 48 hours
By using BizChinese, you acknowledge that you have read and understood this Privacy Policy and agree to its terms.