Privacy Policy
Effective Date: December 26, 2025
LunaFlow AI ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application LunaFlow AI (the "App"). Please read this privacy policy carefully. By using the App, you agree to the collection and use of information in accordance with this policy.
1. Information We Collect
1.1 Personal Information
We collect information that you provide directly to us:
- Account Information: Email address, display name, and profile photo when you create an account
- Authentication Data: Login credentials through email/password, Google Sign-In, Apple Sign-In, or Facebook Login
- Profile Information: Age, preferred language, and tracking goals
1.2 Health and Wellness Data
To provide period tracking and wellness features, we collect:
- Menstrual Cycle Data: Period start and end dates, cycle length, period duration, flow intensity, and flow characteristics
- Symptom Logs: Physical symptoms including cramps, headaches, bloating, fatigue, and other health indicators
- Mood and Emotional Data: Daily mood entries, energy levels, stress levels, and emotional states
- Wellness Notes: Personal journal entries and notes about your health
1.3 Health Connect Data (Optional)
With your explicit consent, we may access data from Health Connect:
- Step count
- Heart rate
- Sleep data
- Distance traveled
- Calories burned
- Weight
- Body temperature
This data is only accessed when you grant permission and is used solely to provide personalized wellness insights.
1.4 Voice and Audio Data
With your permission, we collect:
- Voice Logs: Audio recordings you create for personal health journaling
- Speech Input: Voice commands for hands-free logging (processed locally and via AI services)
1.5 Community Data
If you use our community features:
- Anonymous posts and comments you create
- Interactions with community content
- Community badges earned
1.6 Partner Sharing Data
If you use partner sharing features:
- Partner connection status
- Shared cycle data based on your privacy settings (minimal, moderate, or full)
- Partner communication preferences
1.7 Device and Usage Information
- Device type and model
- Operating system version
- App version
- Usage patterns and feature interactions
- Crash logs and performance data
1.8 Camera and Photo Data
With your permission:
- Profile photos you upload
- Images captured for visual logging features
2. How We Use Your Information
2.1 Core App Functionality
- Track and predict menstrual cycles
- Calculate ovulation and fertile windows
- Log symptoms, moods, and wellness data
- Generate personalized health insights
- Provide cycle phase-based recommendations
2.2 AI-Powered Features
We use artificial intelligence services (Google Gemini and OpenAI) to:
- Generate personalized cycle insights and predictions
- Provide AI chat support for health questions
- Transcribe voice logs to text
- Analyze patterns in your health data
- Offer wellness recommendations
Your data is processed by these AI services in accordance with their respective privacy policies. We do not share personally identifiable information with AI providers; only anonymized health data is used for generating insights.
2.3 Notifications and Reminders
- Period and ovulation reminders
- Daily logging reminders
- Wellness tips and recommendations
- App updates and announcements
2.4 Service Improvement
- Analyze usage patterns to improve app features
- Debug and fix technical issues
- Develop new features based on user needs
3. Data Storage and Security
3.1 Data Storage
- Your data is stored securely using Google Firebase services
- Cloud Firestore for structured data storage
- Firebase Storage for media files (voice logs, images)
- Local device storage for offline functionality and caching
3.2 Security Measures
- All data transmission is encrypted using TLS/SSL
- Firebase Authentication for secure account access
- Firestore security rules to prevent unauthorized access
- Regular security audits and updates
3.3 Data Retention
- Your data is retained as long as your account is active
- You can request data deletion at any time
- Deleted accounts and associated data are permanently removed within 30 days
4. Third-Party Services
We use the following third-party services:
| Service |
Purpose |
Data Shared |
| Google Firebase |
Authentication, database, storage, analytics, messaging |
Account info, app usage, health data |
| Google Gemini AI |
AI-powered insights and chat |
Anonymized health data for processing |
| OpenAI |
AI-powered insights and chat (alternative provider) |
Anonymized health data for processing |
| Google Mobile Ads (AdMob) |
Display advertisements |
Device identifiers, ad interaction data |
| Google Play Billing |
In-app purchases and subscriptions |
Purchase history, subscription status |
| Google Sign-In |
Authentication |
Email, name, profile photo |
| Apple Sign-In |
Authentication |
Email, name (as permitted by user) |
| Facebook Login |
Authentication |
Email, name, profile photo |
| Health Connect |
Wearable and health data integration |
Health metrics (with user permission) |
5. Permissions Required
| Permission |
Purpose |
Required |
| Internet |
Sync data and access online features |
Yes |
| Notifications |
Send period reminders and health alerts |
Optional |
| Microphone |
Voice logging and speech input |
Optional |
| Camera |
Profile photo and visual logging |
Optional |
| Health Connect |
Sync wearable health data |
Optional |
6. Data Sharing
6.1 We Do Not Sell Your Data
We do not sell, trade, or rent your personal information or health data to third parties.
6.2 Limited Sharing
We may share your information only in the following circumstances:
- With Your Consent: When you explicitly authorize sharing (e.g., partner sharing feature)
- Service Providers: With trusted third-party services that help operate our app (as listed in Section 4)
- Legal Requirements: When required by law or to protect our rights
- Safety: To protect the safety of our users or the public
6.3 Partner Sharing Feature
If you choose to connect with a partner:
- You control what data is shared through privacy level settings
- Minimal: Only cycle dates and phase
- Moderate: Dates, phase, and daily mood
- Full: Dates, phase, mood, symptoms, and wellness data
- You can revoke partner access at any time
6.4 Community Features
Posts in our community are anonymous by default. We generate random display names to protect your identity.
7. Your Rights and Choices
7.1 Access and Portability
- View all your stored data within the app
- Request a copy of your data in a portable format
7.2 Correction
- Edit or update your personal information and health logs at any time
7.3 Deletion
- Delete individual logs, symptoms, or mood entries
- Request complete account deletion through the app settings
7.4 Opt-Out
- Disable notifications in app settings or device settings
- Revoke Health Connect permissions at any time
- Decline optional permissions (camera, microphone)
- Opt out of personalized ads through device settings
8. Children's Privacy
LunaFlow AI is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us so we can delete such information.
9. International Data Transfers
Your information may be transferred to and processed in countries other than your country of residence. These countries may have data protection laws that are different from the laws of your country. We ensure appropriate safeguards are in place to protect your information in accordance with this Privacy Policy.
10. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by:
- Posting the new Privacy Policy within the app
- Updating the "Effective Date" at the top of this policy
- Sending a notification for significant changes
We encourage you to review this Privacy Policy periodically for any changes.
11. California Privacy Rights (CCPA)
If you are a California resident, you have the right to:
- Know what personal information we collect about you
- Request deletion of your personal information
- Opt-out of the sale of your personal information (we do not sell personal information)
- Non-discrimination for exercising your privacy rights
12. European Privacy Rights (GDPR)
If you are in the European Economic Area (EEA), you have the right to:
- Access your personal data
- Rectify inaccurate personal data
- Erase your personal data
- Restrict processing of your personal data
- Data portability
- Object to processing of your personal data
- Lodge a complaint with a supervisory authority
13. Health Data Disclaimer
LunaFlow AI is designed for informational and tracking purposes only. It is not a medical device and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.
The AI-generated insights and predictions are based on the data you provide and general patterns. Individual results may vary, and the app should not be relied upon for medical decisions or as a contraceptive method.
15. Consent
By using LunaFlow AI, you consent to this Privacy Policy and agree to its terms. If you do not agree to this policy, please do not use our App.