My BP Diary
Independent Developer ยท Effective Date: June 17, 2026
โ Our Core Privacy Commitment
My BP Diary (hereinafter referred to as "the Application") is developed and maintained by an independent individual developer. This application is designed to help you conveniently record and track blood pressure and pulse rate measurements for personal health awareness.
This Privacy Policy explains how we treat your information โ and more importantly, how we do not collect your sensitive data. Please read this document carefully to understand our practices regarding data privacy.
๐ My BP Diary does not collect, store on remote servers, or transmit any personal health or sensitive identity data. All blood pressure readings, pulse rates, dates, and notes you enter remain entirely under your control. Theๅฏไธ็ data processing is strictly limited to non-sensitive backend telemetry required for core app functionality, such as Pro version purchase validation.
Except for the essential infrastructure required to validate purchases and unlock Pro features, this application does not contain any of the following services:
My BP Diary handles sensitive physiological information. We are committed to the following practices in full compliance with Apple App Store Review Guidelines (including Guideline 5.1.3 for HealthKit), Google Play Developer Policies (including the Health Connect Developer Policy), and applicable privacy regulations:
๐พ Local Storage โ Apple SwiftData & Jetpack Room DB
All blood pressure and pulse readings you enter are stored locally on your device using Apple SwiftData technology (on iOS) or Jetpack Room DB (on Android). This data never leaves your device through any channel controlled by the developer. No external servers are involved in storing your health logs.
โ๏ธ iCloud Sync & Backups
iOS (iCloud Sync): If you are signed into an Apple ID with iCloud enabled, your health records may be synchronized across your multiple Apple devices via Apple CloudKit. This synchronization is end-to-end encrypted and managed entirely by Apple, governed by Apple's Privacy Policy, and completely inaccessible to the developer.
Android (Backups): On Android, your data is stored strictly locally. It does not sync across multiple devices under the developer's control. However, your local database may be backed up to your personal Google Account via Android's built-in system backup if enabled on your device.
๐ฉบ System Health Integrations (Apple Health & Android Health Connect)
If you enable system health integration, the Application will write your blood pressure and pulse measurements directly to your device's native health database:
You can manage or completely revoke these permissions at any time via your device's system settings.
๐ App Preferences & Local Configuration
The Application uses local storage (such as UserDefaults or SharedPreferences) to store basic operational states and user preferences. This data is stored strictly on your device and includes:
Data Integrity Statement: These operational preferences do not contain any health-related data (e.g., blood pressure logs) or personally identifiable information (PII).
My BP Diary integrates only essential core infrastructure services, including the following native systems and RevenueCat:
๐ App Store & Google Play In-App Purchases
Purchases of the Pro version upgrade are processed exclusively through Apple's App Store payment infrastructure (on iOS) or Google Play Billing (on Android). The developer receives no credit card numbers, payment account details, or financial information from these transactions. All payments are verified securely through Apple's or Google's servers, governed by their respective privacy policies.
๐งพ RevenueCat (Purchase Management)
We use RevenueCat to securely validate and manage purchase receipts and tokens for both the App Store and Google Play. RevenueCat processes only randomly generated anonymous App User IDs, basic device metadata, and purchase history to verify and unlock premium features across your devices. RevenueCat does not access, collect, or link to any of your blood pressure, pulse, or health data. For details, please refer to the RevenueCat Privacy Policy.
๐ฉบ System Health Integration Services
Apple HealthKit and Android Health Connect are secure integrated system services provided by Apple and Google, respectively. These integrations are governed by the Apple Privacy Policy and the Google Privacy Policy. The Application does not share health data from these services with any third parties.
When you use the in-app feedback feature to send an email, your email address and the content of your message will be used solely to respond to your inquiry and to improve the application. This information is never shared with any third parties.
This communication occurs entirely through your personal email client on your device. No data is sent to or stored on developer-operated web servers.
My BP Diary is not directed at children under the age of 13. We do not knowingly collect personal information from children. Since the application does not harvest personal identity data from any user, children's information is likewise never collected, stored, or transmitted.
If you believe a child has provided personal information through feedback communications, please contact us immediately so we can take appropriate action.
Because all health data is stored locally on your device or within your encrypted cloud, you retain full control at all times:
If you are located in the European Economic Area (EEA), California, or other jurisdictions with applicable data protection laws, please note that since we do not harvest personal data, data subject rights such as access, rectification, and erasure are exercised directly through your device's native operating system controls.
The security of your health data is of paramount importance. Because we do not transmit or store your data on external servers, the primary security layer is your device's own operating system, which includes:
We strongly encourage you to use a strong passcode and enable Face ID/Touch ID or fingerprint lock on your device to protect access to your health information.
We may update this Privacy Policy from time to time. Any changes will be reflected by updating the "Effective Date" at the top of this page. We encourage you to review this policy periodically.
Your continued use of My BP Diary after any modifications to this Privacy Policy constitutes your acceptance of the updated terms.
If you have any questions about this Privacy Policy or
our data practices, please reach out to us.