Privacy Policy

1. Introduction

Welcome to Fastelle. We are committed to protecting your personal information. This Privacy Policy explains how we collect, use, and safeguard your data when you use the Fastelle app.

2. Information We Collect

• Personal details you provide during onboarding: name, date of birth, height, weight, and health information including cycle data, health concerns, and dietary preferences.
• Usage data: fasting records, meal logs, water intake, mood entries, and weight logs.
• Device information: device type, operating system version, and app version for diagnostic purposes.

3. How We Use Your Information

• To generate your personalised fasting plan based on your cycle phase and health profile.
• To track your progress and display trends in fasting, nutrition, hydration, and mood.
• To provide AI-powered meal analysis when you use the food logging feature.
• To manage your subscription status via RevenueCat.

4. Data Storage

All personal health data is stored locally on your device using AsyncStorage. We do not upload or store your health data on external servers. Your data stays on your device.

5. Third-Party Services

• OpenAI — used for AI meal analysis. Food descriptions you submit may be processed by OpenAI. Please refer to OpenAI's privacy policy for details.
• RevenueCat — used to manage subscriptions. RevenueCat processes purchase data and assigns an anonymous user ID. Please refer to RevenueCat's privacy policy for details.

6. Health Data

Fastelle collects sensitive health information including menstrual cycle data, medical conditions, and dietary preferences. This data is used solely to personalise your fasting plan and is never shared with third parties for marketing purposes.

7. Data Retention

Your data is retained on your device for as long as you have the app installed. Uninstalling the app will remove all locally stored data. Subscription records managed by RevenueCat are retained per their data retention policy.

8. Your Rights

• You may delete your data at any time by uninstalling the app.
• You may contact us to request information about what data is held or to raise concerns about data handling.

9. Children's Privacy

Fastelle is not intended for use by individuals under the age of 17. We do not knowingly collect data from children.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes through the app. Continued use of Fastelle after changes constitutes your acceptance of the updated policy.

11. Contact Us

If you have any questions about this Privacy Policy, please contact us at fastelleapp@gmail.com.