Privacy Policy

Last Updated: 27 November 2025

This Privacy Policy explains how Leptin ("the App", "we", "us", "our") collects, uses, stores, protects, and shares your personal information. By using the App, you agree to the practices described in this Policy.

1. Information We Collect

1.1 Information You Provide

• Account details: Name, email, password, timezone.
• User Profile: Age group, dietary preferences, fasting goals, lifestyle settings.
• Health Information (Sensitive Data):
  • Fasting sessions, hours fasted, break reasons
  • Exercise sessions and activity logs
  • Menstrual cycle information (whether the user experiences menstrual periods)
  • Measurements (e.g., weight, glucose if manually logged)
  • Health conditions (e.g., diabetes, hypertension)
• Meal Logs: Meals, ingredients, photos, satisfaction ratings.
• Notes and symptoms: Hunger waves, fatigue, cravings, or other experiences.

1.2 Automatically Collected Information

• Device information (model, OS version, app version)
• Log data and analytics
• Session timestamps
• Crash reports

1.3 Third-Party Data

We may receive data from authentication providers, cloud hosting platforms, or analytics services. We do not buy personal data from third parties.

2. How We Use Your Information

Your information is used for:

• Providing personalized fasting insights
• Adjusting exercise recommendations
• Generating AI-powered explanations and coaching
• Maintaining your profile and history
• Improving the App, algorithms, and AI models
• Customer support and troubleshooting
• Compliance with legal obligations

2A. Importance of Accurate Information

For Leptin to provide appropriate, safe, and useful wellness guidance, it is important that the information you supply is truthful, complete, and up to date.

By using the App, you acknowledge that:

• Providing false, partial, or misleading information may result in inaccurate or unsafe recommendations.
• The App's wellness insights depend heavily on your logged meals, fasting sessions, symptoms, exercise history, and health status.
• You are responsible for reviewing and updating your information when your circumstances change.

We are not liable for harms or inaccuracies arising from incorrect or incomplete user-provided data.

3. Sensitive Data

Leptin processes health-related data only for the purpose of providing wellness guidance. Sensitive data includes:

• Health conditions
• Menstrual cycle information
• Exercise logs
• Fasting behaviour
• Diet and meal records

We never sell sensitive data.

You may delete your sensitive data at any time. Some features may require certain data to function.

4. AI Processing

Certain features rely on AI systems to generate predictions, insights, and explanations. AI systems may temporarily process:

• Your fasting hours
• Your goals
• Your meal/exercise patterns
• Symptoms and wellness logs

AI processing is used solely for:

• Wellness guidance
• Pattern detection
• Content generation
• Future model improvement (in anonymized form)

5. Legal Basis for Processing

Depending on your jurisdiction, we rely on:

• User consent
• Performance of a contract (account usage)
• Legitimate interests (app improvement, security)
• Compliance with legal obligations

6. Data Sharing

We may share personal data only with:

• Cloud hosting providers
• Analytics providers (aggregated or anonymized)
• AI processing services
• Customer support tools
• Legal authorities when required

We do not sell personal data.

7. International Transfers

Data may be stored or processed in locations outside your home country. We use safeguards such as contractual clauses and encryption to protect data.

8. Data Retention

We retain data for as long as necessary to provide the Service, comply with legal requirements, and maintain accurate records. Users may delete their account at any time.

9. Your Rights

You may have the right to:

• Access your data
• Request correction or deletion
• Withdraw consent
• Export your data
• Object to certain processing

Requests can be submitted to info@leptin.app.

10. Children's Privacy

Leptin is not intended for children under the age of 16. We do not knowingly collect personal data from children without appropriate consent.

11. Security

We use encryption, access controls, monitoring, and secure storage to protect data. However, no system is completely secure. Users are encouraged to use strong passwords and safeguard their devices.

12. Changes to this Policy

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

13. Contact Us

If you have questions about this Privacy Policy, contact us at:
info@leptin.app