Privacy Policy

Effective Date: May 18, 2025
Service Name: Zi Wei Dou Shu Calculator by ZWDS-Calculator.com

Your privacy is important to us. This Privacy Policy explains how we collect, use, and protect your information when you use our Zi Wei Dou Shu calculator ("Service").

1. Information We Collect

We may collect the following types of information:

a. Personal Information

• Birth date, birth time, and birth location (used solely for generating astrological charts).
• Email address (only if provided voluntarily for support or account features).

b. Usage Data

• Anonymous analytics such as browser type, time on page, and interaction with features.
• Device and IP address (for security and analytics).

c. Payment Information

If you purchase a premium feature, payment is handled securely via third-party processors. We do not store credit card details on our servers.

2. How We Use Your Data

We use your information to:

• Generate accurate Zi Wei Dou Shu charts and interpretations.
• Improve service performance and user experience.
• Communicate with you about support requests, updates, or new features.
• Process payments.
• Prevent abuse or fraud.

3. Data Sharing

We do not sell, rent, or trade your data. We may share data only in the following cases:

• With trusted service providers (e.g., payment processors, analytics tools) under confidentiality agreements.
• If required by law, regulation, or legal process.
• To protect our rights, users, or the public.

4. Data Retention

Data entered for chart generation is typically not stored unless explicitly saved under a user account. Usage analytics may be stored for up to 12 months.

5. Cookies and Tracking

We use cookies and similar technologies to:

• Remember user preferences.
• Enable essential features (like chart rendering).
• Collect anonymous usage statistics.

6. Security

We implement reasonable security measures (encryption, access controls) to protect your data. However, no system is 100% secure. Use the Service at your own discretion.

7. Children’s Privacy

Our service is not intended for children under 13. We do not knowingly collect personal data from minors without parental consent.

8. Changes to This Policy

We may update this Privacy Policy periodically. Changes will be posted on this page with a new effective date.

9. Contact Us

If you have questions or concerns, please reach out at: [email protected]