Nightfalls Privacy Policy

Last updated: November 2023

1. About Nightfalls

This Privacy Policy explains how Nightfalls ("we," "our," or "us") collects, uses, and shares your information when you use our sunset prediction application ("the App"). We are committed to protecting your privacy and being transparent about our data practices. Nightfalls is a sunset quality forecasting application that predicts the quality of sunsets based on various factors such as weather conditions, cloud cover, and more.

2. Information We Collect

2.1 Location Information

- Geographical location (latitude and longitude)
- Time zone information

2.2 Usage Information

- App performance data
- Feature usage statistics
- Device type and operating system
- App interaction patterns

2.3 How We Collect Information

- Direct location access through your device
- When you manually search for locations
- Through your device's GPS, IP address, or network information
- Through analytics services that monitor app performance and usage

3. Data Retention

We do not retain historical location data. Location information is processed in real-time and immediately discarded after use.

4. How We Use Your Information

We use your information to:

- Provide accurate sunset predictions for your location
- Improve our prediction algorithms
- Maintain and optimize our services
- Analyze usage patterns to improve user experience
- Monitor and improve app performance

5. Information Sharing and Disclosure

5.1 Third-Party Services

We share data with: Google Services for location processing, Open Meteo for weather and forecasting data, analytics services to improve our app performance and user experience

5.2 Legal Requirements

We may disclose information if required by law or in response to valid requests from public authorities.

6. Your Rights and Choices

You have the right to:

- Turn off location services at any time
- Opt out of analytics collection
- Request deletion of your data

7. Data Security

We implement appropriate security measures to protect your information during transmission and processing. Since we do not retain historical data, there is no long-term storage of personal information.

8. Account Information

Nightfalls does not require user accounts and does not collect or store account information.

9. Cookies and Tracking

Nightfalls does not use cookies or persistent tracking mechanisms.

10. Children's Privacy

Our service is available to users of all ages. We do not knowingly collect personal information from children under 13 without parental consent.

11. Changes to This Privacy Policy

We may update this Privacy Policy periodically. We will notify you of any changes by posting the new Privacy Policy on this page.

12. Contact Us

If you have any questions about this Privacy Policy, please contact us at: chengjie.michael.huang@gmail.com

13. Additional Information

13.1 Data Storage and Processing

- Your information is processed in real-time and is not stored
- By using the App, you consent to any such processing of information outside of your country

13.2 Your California Privacy Rights

California residents have additional rights regarding their personal information under the California Consumer Privacy Act (CCPA).