YunMuse

Privacy Policy

Last updated: March 12, 2026

1. Introduction

YunMuse ("we," "our," or "us") operates the YunMuse web application (the "Service"), an AI-powered BaZi (Four Pillars of Destiny) reading platform. This Privacy Policy explains how we collect, use, and protect your information when you use our Service.

We are based in Los Angeles, California, and comply with the California Consumer Privacy Act (CCPA) and the California Privacy Rights Act (CPRA).

2. Information We Collect

We collect the following categories of personal information:

  • Birth Information: Date of birth (year, month, day), birth hour (optional), and birth location (province/city, optional). This data is used solely to generate your BaZi chart and personalized reading.
  • Profile Information: Nickname (optional), gender (optional), and areas of interest (optional).
  • Email Address: If voluntarily provided for our waitlist/newsletter.
  • Usage Data: We may collect anonymized analytics data such as page views, feature usage, and device type to improve our Service.

3. How We Use Your Information

  • To generate your personalized BaZi chart and AI-powered reading
  • To enable follow-up conversations about your chart
  • To send product updates if you subscribe to our waitlist
  • To improve our Service through anonymized analytics

We do not sell, rent, or trade your personal information to third parties.

4. Data Storage & Retention

  • Session-only processing: Your birth information and chat conversations are processed in real-time and are not permanently stored on our servers after your session ends.
  • Local storage: Privacy consent status and email (if provided) are stored locally in your browser via localStorage.
  • AI processing: Your data is sent to our AI provider (Google Gemini) for reading generation. This data is processed in transit and not retained by the AI provider beyond the request.

5. Your California Privacy Rights (CCPA/CPRA)

As a California resident, you have the following rights under the CCPA and CPRA:

  1. Right to Know: You can request what personal information we have collected about you.
  2. Right to Delete: You can request deletion of your personal information. Since we primarily use session-based processing, you can clear your browser's localStorage to remove all locally stored data.
  3. Right to Opt-Out of Sale: We do not sell your personal information.
  4. Right to Non-Discrimination: We will not discriminate against you for exercising your privacy rights.
  5. Right to Correct: You can request correction of inaccurate personal information.
  6. Right to Limit Use of Sensitive Information: Your birth information is used only for the stated purpose of BaZi reading generation.

6. Third-Party Services

We use the following third-party services:

  • Google Gemini (AI): For generating BaZi readings and follow-up conversations. Data is sent via encrypted API calls.
  • Vercel: For hosting the Service. Subject to Vercel's privacy policy.

7. Data Security

We implement appropriate technical and organizational measures to protect your personal information, including:

  • HTTPS encryption for all data in transit
  • No persistent server-side storage of birth information
  • Rate limiting to prevent abuse
  • Minimal data collection (we only ask for what is necessary)

8. Children's Privacy

Our Service is not directed to children under 13. We do not knowingly collect personal information from children under 13.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by posting the new policy on this page with an updated effective date.

10. Contact Us

If you have questions about this Privacy Policy or wish to exercise your California privacy rights, please contact us at:

YunMuse · Los Angeles, CA
Email: privacy@yunmuse.com