1. Data That Stays on Your Device
The following data is stored only in a local database on your device and is never sent to servers:
- Photos: Photos you take or pick from your gallery for a scan never leave your device.
- Posture results: Body landmark detection, angle calculations, your Posture Score and findings are calculated and stored on your device.
- Tension map: The tension areas and levels you mark.
- Exercise data: Your daily routines, session history, streak and progress.
2. Data We Collect
2.1. Account information (optional)
You can use the app without an account. If you sign in with Google or Apple, your email address, display name and user ID are processed by Firebase Authentication for sign-in.
2.2. Free scan counter
Your first 3 scans are free. To prevent abuse of this allowance, only the following is stored in Firebase Firestore:
- If you are signed in, the total number of scans and the time of your last scan, linked to your user ID.
- An anonymous device hash (SHA-256) that does not identify you, and the total number of scans on that device.
These records do not contain photos, posture results or exercise data.
2.3. Feedback
If you use the in-app feedback form, your message together with the app version and device information (model, OS, screen resolution) is stored in Firestore and forwarded to our support email.
2.4. Subscription
PosMetric Pro purchases are made through Google Play Billing. Your subscription status is verified via RevenueCat. We never see your payment details; they are processed by Google.
2.5. Usage and crash data
- Firebase Analytics: Screen views, session durations, general device information and anonymous interaction events (e.g. completing a scan, starting or finishing an exercise). This data does not include photos, posture results or information that directly identifies you.
- Advertising ID: Firebase Analytics may use the device advertising ID for usage analytics only. The app does not show ads.
- Firebase Crashlytics: When the app crashes, a crash report, device model, OS and app version, and a technical identifier linked to the installation.
- Firebase App Check: An integrity check to verify the app is running unmodified on a genuine device.
3. Permissions
- Camera: Only to take photos for a posture scan.
- Photos / gallery: To let you pick a photo for a scan.
- Notifications: For exercise and re-scan reminders (optional).
4. Data Sharing
We do not sell, rent or share your personal data for marketing. Data is processed only by the following service providers we use to run the service:
- Google Firebase: Authentication, Firestore, Analytics, Crashlytics, App Check. policies.google.com/privacy
- RevenueCat: Subscription verification. revenuecat.com/privacy
- Google Play Billing: Payment processing.
- Legal requirements: Where required by applicable law.
5. Data Security
- On-device data is kept in the operating system's app sandbox.
- All data sent to servers is encrypted with SSL/TLS.
- We collect only the minimum data needed.
- Uninstalling the app deletes all app data stored on your device.
6. Your Rights and Data Deletion
- Account and data deletion: Use Account > Delete Account in the app to delete your account and its server records. If you cannot access the app, follow the steps on our account deletion page.
- Anonymous device counter: Because it does not identify you, it may be kept after account deletion to enforce the free scan allowance.
- Access: You can access all data stored on your device through the app.
7. Age Requirement
PosMetric is intended for users aged 18 and over. We do not knowingly collect personal data from anyone under 18; if we become aware of such data, we delete it.
8. Changes
This policy may be updated from time to time. The current version is always published on this page.
9. Contact
- Email: info@physiometric.app
- Developer: FArk Studio