# Privacy Policy — Parkinson's Diary
**Last updated:** 2026-07-21
**Developer:** Mobilia Apps
**Contact:** muhammadilyas15@gmail.com
**App:** Parkinson's Diary (`com.ilyas.ilyasapps.parkinsonsdiary`)
Parkinson's Diary ("the app") is a personal Parkinson's symptom-tracking tool. This policy explains what data the app handles.
## Summary
- **Your health data stays on your device.** There is no account, no sign-in, and no cloud copy of the ON/OFF logs, tremor/motor ratings, symptoms, or medications you record. They are stored only in a local database on your phone.
- Data leaves your device only when **you** choose to share a report (PDF/CSV), and through the limited third-party services below (ads, crash/usage reporting).
## Health data you enter
ON/OFF and dyskinesia events, tremor/rigidity/bradykinesia ratings, Hoehn & Yahr stage, non-motor symptoms, medications, and profile details are stored **locally on your device only**. We do not transmit, sell, or have access to this information. Uninstalling the app deletes this data; you can also delete individual entries in the app.
## Notifications
The app can show an ongoing "on/off" notification with one-tap buttons and daily reminders. On Android 13+ you are asked to grant notification permission; you can decline, and the rest of the app still works.
## Third-party services
- **Google AdMob** (advertising): shows ads to users who have not purchased Premium. AdMob may collect an advertising identifier and device information to serve and measure ads. See https://policies.google.com/privacy
- **Google Play Billing**: processes the Premium purchase. We do not receive or store your payment details.
- **Firebase Crashlytics & Google Analytics for Firebase**: collect anonymous crash reports and aggregate usage/diagnostic data to help us fix bugs and improve the app. These do not include the health entries you record.
## Permissions
- **Internet / Network state** — ads, purchase validation, crash/analytics reporting.
- **Notifications** — the on/off notification and reminders.
- **Vibrate / Run at startup** — reminder delivery and re-showing the on/off notification after a device restart.
- **Billing** — the Premium purchase.
The app does **not** request location, camera, contacts, or microphone permissions.
## Data retention & deletion
Your health entries live only on your device and are removed when you delete them or uninstall the app. We hold no server-side copy. Advertising and analytics data are retained by Google per their policies.
## Children
The app is not directed at children and we do not knowingly collect data from them.
## Your rights (GDPR / CCPA)
Because your health data is stored only on your device, you remain in control of it at all times. For advertising/analytics data handled by Google, use Google's controls and your device ad settings. Contact us at muhammadilyas15@gmail.com with any privacy question.
## Not a medical service
Parkinson's Diary is a personal tracking tool, not a medical device, and does not provide medical advice or diagnosis.
## Changes
We may update this policy; material changes will be reflected here with a new "Last updated" date.