Privacy Policy
Last Updated: February 2025
Introduction
ACL Rehab Tracker ("we", "our", "the app") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our mobile application.
Information We Collect
1. Personal Information You Provide
- Name: Used to personalize your experience within the app
- Surgery Date: Used to calculate your recovery timeline and suggest appropriate rehabilitation levels
2. Health & Fitness Data
All health data is stored locally on your device and is never transmitted to our servers:
- Pain logs (pain level, location, context, notes)
- Mobility measurements (knee flexion and extension degrees)
- Workout completion records
- Exercise logs and set tracking
- Level progression history
3. Sensor Data
- Gyroscope/Accelerometer: Used only for the in-app mobility measurement feature
- Sensor data is processed locally on your device
- No sensor data is stored or transmitted externally
4. Analytics Data (Anonymous)
We use Firebase Analytics to collect anonymous usage statistics:
- App opens and screen views
- Feature usage patterns (which screens are visited)
- App crashes and errors (Firebase Crashlytics)
- Device type, operating system version
- Country/region (approximate)
This data is anonymous and cannot be used to identify you personally.
How We Use Your Information
- Personal Data: To personalize your in-app experience and calculate recovery timelines
- Health Data: Stored locally to track your rehabilitation progress over time
- Analytics: To improve app performance, fix bugs, and understand which features are most useful
Data Storage & Security
- Local Storage: All personal health data (pain, mobility, workouts) is stored in an encrypted local database on your device using SQLite/IndexedDB
- No Cloud Sync: Your health data is never uploaded to external servers
- No Accounts Required: The app works without creating an account or signing in
- Your Control: You can delete all your data at any time through the app settings
Third-Party Services
We use the following third-party services:
| Service | Purpose | Data Shared |
|---|---|---|
| Firebase Analytics | Anonymous usage analytics | Anonymous device & usage data |
| Firebase Crashlytics | Crash reporting & bug fixes | Anonymous crash logs |
| Google Play Services | App distribution | Standard Play Store data |
These services have their own privacy policies:
Data Sharing
We do NOT:
- Sell your personal data to third parties
- Share your health data with advertisers
- Use your data for targeted advertising
- Transmit your health data to external servers
Your Rights
You have the right to:
- Access: View all data stored by the app (available in app)
- Delete: Remove all your data through app settings
- Portability: Export your data (feature planned)
- Opt-out: Disable analytics in device settings
Children's Privacy
ACL Rehab Tracker is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13.
Data Retention
- Local Data: Retained until you delete it or uninstall the app
- Analytics Data: Retained by Firebase for up to 14 months, then automatically deleted
Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last Updated" date at the top of this policy.
Terms of Service
Please review our full Terms of Service for important information about using ACL Rehab Tracker, including medical disclaimers, assumption of risk, and liability waivers.
Contact Us
If you have questions about this Privacy Policy, please contact us at:
Email: [email protected]