Privacy Policy

Last updated: November 6, 2025

1. Introduction

LyteFast ("we", "our", or "the App") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and protect your personal information.

2. Information We Collect

Health & Fitness Data

Weight measurements
Calorie consumption and expenditure
Fasting windows
Food logs (AI scans, barcode scans, manual entries)
Activity/exercise data
Macronutrient data (protein, carbs, fats)
Carbon footprint (CO₂e) data

Technical Data

Device information
User ID (for subscription validation)
App usage statistics
Crash reports

Subscription Data

Purchase history
Subscription status
Payment information (processed by Apple)

3. How We Use Your Information

We use your data to:

Provide weight forecasting and tracking
Calculate calorie budgets and deficits
Estimate nutritional content via AI
Track carbon footprint of meals
Identify gluten status
Sync with Apple Health
Validate subscriptions
Improve app performance

4. Data Storage

All health data is stored in Apple Health on your device
Subscription status cached temporarily on our servers
No health data stored on external servers
User ID generated locally and stored securely

5. Data Sharing

We DO NOT:

Sell your data
Share health data with third parties
Use your data for advertising
Track you across other apps or websites

We MAY share:

Subscription status with Apple (for validation only)
Anonymous usage statistics for app improvement
Required information for legal compliance

6. Your Rights (GDPR Compliant)

You have the right to:

Access your data
Correct inaccurate data
Delete your data
Export your data
Withdraw consent
Object to processing

7. Data Security

We implement industry-standard security measures:

End-to-end encryption for API calls
Secure backend infrastructure
No storage of sensitive health data on servers
Regular security audits

8. Third-Party Services

LyteFast integrates with:

Apple Health: Health data storage and sync
App Store: Subscription management
OpenAI: AI food analysis (images processed securely, not stored)

Each service has its own privacy policy.

9. Children's Privacy

LyteFast is not intended for children under 13. We do not knowingly collect data from children under 13.

10. International Users

LyteFast is available globally in 39 languages. Data processing complies with GDPR and applicable data protection laws.

11. Changes to Privacy Policy

We may update this Privacy Policy periodically. Continued use after changes constitutes acceptance.

12. Contact Us

Privacy questions or concerns:

Email: privacy@lytefast.com
Website: https://lytefast.com