# Privacy Policy for Blood Pressure Log
**Effective Date:** April 13, 2026
**Developer:** Muhammad Ilyas
**Contact:** muhammadilyas15@gmail.com
## 1. Introduction
Blood Pressure Log ("we", "our", "the app") is a personal health tracking application for recording blood pressure readings, blood sugar levels, weight measurements, and medications. This Privacy Policy explains how we collect, use, store, and protect your information when you use our mobile application.
By using Blood Pressure Log, you agree to the collection and use of information as described in this policy.
## 2. Information We Collect
### 2.1 Information You Provide
- Blood pressure readings (systolic, diastolic, pulse)
- Blood sugar readings (value, unit, meal status)
- Weight measurements
- Medication details (name, dosage, frequency, status)
- Measurement context (body position, arm used, date/time)
- Notes associated with readings
- Contact form messages (subject, message text)
### 2.2 Information Collected Automatically
- Device information (model, OS version, app version) for crash reporting
- App usage analytics (screens visited, feature usage) via Firebase Analytics
- Advertising identifiers (for personalized ads in the free tier)
### 2.3 Information from Third-Party Services
We do not use third-party sign-in services. No account creation is required to use this app.
## 3. How We Use Your Information
We use collected information to:
- Provide core app functionality (blood pressure tracking, blood sugar logging, weight monitoring, medication management)
- Generate health reports and trend charts
- Display relevant advertisements (free tier only)
- Improve app performance and fix crashes via crash reporting
- Process subscription and one-time purchases
## 4. Data Storage and Security
### 4.1 Local Storage
- All your health data (blood pressure readings, blood sugar levels, weight measurements, and medications) is stored locally on your device using an SQLite/Room database
- App preferences (theme, default measurement settings) are stored locally via SharedPreferences
- No health data is transmitted to any server or cloud service
### 4.2 Cloud Storage
- This app does NOT use cloud storage or cloud backup
- Your health data never leaves your device
- There is no account system or sign-in requirement
### 4.3 Security Measures
- All network communication (ads, analytics, crash reports) uses HTTPS/TLS encryption
- Health data is stored in the app's private internal storage, inaccessible to other apps
- Uninstalling the app permanently deletes all locally stored data
## 5. Data Sharing
### 5.1 We Do NOT Sell Your Data
We do not sell, trade, or rent your personal information to third parties.
### 5.2 Third-Party Services
We use the following third-party services that may collect data:
| Service | Purpose | Data Accessed | Privacy Policy |
|---------|---------|--------------|----------------|
| Google AdMob | Advertising | Device ID, ad interactions | [Google Privacy Policy](https://policies.google.com/privacy) |
| Firebase Analytics | App improvement | Usage patterns, device info | [Firebase Privacy](https://firebase.google.com/support/privacy) |
| Firebase Crashlytics | Crash reporting | Crash logs, device state | [Firebase Privacy](https://firebase.google.com/support/privacy) |
| Google Play Billing | Subscriptions | Purchase history | [Google Privacy Policy](https://policies.google.com/privacy) |
| Google UMP | Consent management | Consent preferences | [Google Privacy Policy](https://policies.google.com/privacy) |
### 5.3 Ad Personalization
- Free tier users see advertisements served by Google AdMob
- AdMob may use device identifiers and usage data for ad personalization
- You can opt out of personalized ads through your device settings
- Premium subscribers see no advertisements
### 5.4 Report Sharing
- You may choose to share health reports via the app's share function
- Sharing is entirely user-initiated and uses your device's standard share mechanism
- We have no access to shared reports
## 6. Health Data
### 6.1 Health Information
Blood Pressure Log collects the following health-related information:
- Blood pressure readings (systolic and diastolic values in mmHg)
- Pulse/heart rate (beats per minute)
- Blood sugar levels (mg/dL or mmol/L)
- Body weight (kg or lbs)
- Medication details (names, dosages, frequencies)
- Measurement context (body position, arm used, meal status)
- Timestamps and optional notes for each reading
### 6.2 Health Data Protection
- All health data is stored locally on your device only
- Health data is never transmitted to any server, cloud service, or third party
- Health data is never shared with advertisers or marketing partners
- Health data is never used for advertising purposes
- You maintain full control over your health data at all times
### 6.3 Medical Disclaimer
Blood Pressure Log is a personal health record-keeping tool and is NOT a medical device, diagnostic tool, or medical advice platform. The app does not diagnose, treat, cure, or prevent any disease or health condition. Blood pressure categories shown in the app (Normal, Elevated, High Stage 1, High Stage 2, Crisis) are based on general guidelines and should not replace professional medical evaluation. Always consult your doctor or qualified healthcare provider for medical decisions. Never disregard professional medical advice or delay seeking it because of information from this app.
## 7. Children's Privacy
Blood Pressure Log is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If we discover that a child under 13 has provided us with personal information, we will delete it promptly.
## 8. Your Rights and Choices
### 8.1 Access and Control
- You can view all your data within the app at any time
- You can edit or delete any reading or medication record
- You can generate and export health reports for your records
### 8.2 Data Deletion
- You can delete individual readings from within the app
- Uninstalling the app permanently removes all locally stored data
- No cloud data exists to delete (the app is local-only)
### 8.3 Ad Preferences
- Premium subscription removes all advertisements
- You can opt out of personalized ads via device settings (Settings > Google > Ads)
## 9. GDPR Compliance (European Users)
If you are located in the European Economic Area (EEA), you have additional rights:
- **Right to access** -- request a copy of your data
- **Right to rectification** -- correct inaccurate data
- **Right to erasure** -- request deletion of your data
- **Right to restrict processing** -- limit how we use your data
- **Right to data portability** -- receive your data in a portable format
- **Right to object** -- object to data processing for marketing
The app uses Google's User Messaging Platform (UMP) to obtain consent for data processing and personalized advertising in compliance with GDPR.
To exercise any of these rights, contact us at muhammadilyas15@gmail.com.
## 10. Data Retention
- Local data is retained until you delete it or uninstall the app
- Analytics data is retained per Google's standard retention policies (14 months)
- Crash reports are retained for 90 days
## 11. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of significant changes by:
- Updating the "Effective Date" at the top of this policy
- Posting a notice within the app
Your continued use of the app after changes constitutes acceptance of the updated policy.
## 12. Contact Us
If you have questions or concerns about this Privacy Policy or our data practices, contact us at:
**Email:** muhammadilyas15@gmail.com
**Developer:** Muhammad Ilyas