Privacy Policy

1. Introduction

Xuanzhang (hereinafter "this service" or "we") takes your privacy seriously. This Privacy Policy explains how we collect, use, store, and protect your personal data. By using this service, you agree to the terms of this Privacy Policy.

2. Data Collection

We collect the following types of personal data:

• Palm images: The palm photos you upload, used for the AI analysis service. These images are transmitted with encryption and retained on secure servers after analysis is complete.
• Email: Used to send analysis reports, payment confirmations, and customer support.
• Device identifier: Used to prevent abuse and provide personalized services.
• Payment information: Securely processed through Stripe; we do not store your full credit card number.
• Usage records: Including access times, page browsing records, and the like, used to improve service quality.

3. AI Processing Notice

The palm images you upload will be analyzed using advanced AI technology. The AI system identifies palm-line features and generates a personalized analysis report. Please note:

• AI analysis results are for entertainment reference only and do not constitute professional fortune-telling advice.
• The image-processing procedure complies with applicable data protection regulations.
• You have the right to request deletion of your image data.

4. Payment Security

All payment transactions are processed by Stripe using bank-grade SSL encryption technology. We do not store your credit card number, CVV, or other sensitive payment information. Stripe complies with the PCI DSS Level 1 security standard.

5. Use of Cookies

We use cookies and similar technologies to:

• Maintain your login status
• Remember your preference settings
• Analyze website traffic and usage patterns
• Prevent fraudulent activity

You can manage cookies through your browser settings, but disabling cookies may affect the use of certain features.

6. Your Rights

Under personal data protection law, you have the following rights:

• Right of access: To request to view the personal data we hold about you.
• Right to rectification: To request correction of inaccurate data.
• Right to erasure: To request deletion of your personal data.
• Right to object: To object to specific data-processing activities.
• Right to data portability: To receive your data in a structured format.

To exercise the above rights, please submit a request through the Contact Us page.

7. Data Retention

We retain your personal data for the period necessary to achieve the purposes for which it was collected. Palm images are retained for 30 days by default, and you may request earlier deletion. Payment records are retained for 7 years as required by law.

8. Third-Party Services

We use the following third-party services, each of which has its own independent privacy policy:

• Stripe: Payment processing service
• OpenRouter: AI analysis service
• Vercel: Cloud hosting service
• Google Analytics: Website traffic analysis

9. Children's Privacy

This service is not directed at minors under the age of 18. If we discover that we have collected a minor's personal data without parental consent, we will delete the relevant data as soon as possible.

10. Policy Updates

We may update this Privacy Policy from time to time. Significant changes will be notified to you by email or website announcement. Your continued use of the service constitutes your acceptance of the updated policy.

11. Contact Us

If you have any privacy-related questions, please feel free to contact us through the following channels:

• Email: support@xuanzhang.app
• Online contact form: please visit the Contact Us page