Privacy Policy for Milestone Fasting

Last updated: September 2, 2025

1. Information We Collect

Milestone Fasting is designed to protect your privacy. We collect minimal information necessary to provide our service:

• User ID: We generate a random 8-character identifier for your device to enable data synchronization across your devices.
• Fasting Data: Your fasting sessions, milestones, and statistics are stored locally on your device and optionally synced to our servers.
• Feedback: When you submit feedback through the app, we store your message along with basic technical information to improve our service.

2. How We Use Your Information

• Synchronize your fasting data across your devices
• Provide backup and recovery of your fasting history
• Improve the app based on your feedback
• Ensure proper functionality of the application

3. Data Storage and Security

• Your fasting data is stored locally on your device using browser localStorage
• Server backup uses secure JSON file storage with your unique user ID
• No personal identification information is required or collected
• Data transmission uses HTTPS encryption

4. Data Sharing

We do not share, sell, or distribute your personal data to third parties. Your fasting data remains private and is only accessible through your unique user ID.

5. Third-Party Services

Our app does not currently integrate with third-party analytics or advertising services. We use standard web technologies and our own backend infrastructure.

6. Your Rights

• Data Access: Your data is always accessible through the app using your user ID
• Data Deletion: You can delete your local data through the app settings
• Data Portability: Your fasting data can be exported from the app

7. Data Retention

We retain your fasting data indefinitely to ensure you never lose your progress. If you wish to delete your server data, please contact us with your user ID.

8. Children's Privacy

Our app is intended for users 18 years and older. We do not knowingly collect data from children under 18.

9. Changes to Privacy Policy

We may update this privacy policy occasionally. Changes will be posted on this page with an updated revision date.

10. Contact Information

If you have questions about this privacy policy or your data, please contact us at:

Email: [email protected]
Website: https://fasting.metabolic-therapy.de/

11. Legal Compliance

This privacy policy complies with applicable data protection laws including GDPR for European users and other relevant privacy regulations.