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Last Updated: January 12, 2026

Effective Date: Upon app release

This Privacy Policy describes how Toncho Dev ("we," "us," or "our") collects, uses, and protects your information when you use the Blood Pressure Tracker mobile application ("App"). Your privacy is critically important to us, especially when it comes to sensitive health information like blood pressure data.

Information We Collect

Account Information

When you create an account, we may collect:

• Email address (optional, for account recovery and notifications)
• Display name or username
• Profile picture (optional)

Personal Health Information

To provide personalized features and insights, we collect:

• Age or date of birth
• Weight (optional, for health context)
• Height (optional, for BMI calculations)
• Gender (optional, for age/gender-specific reference ranges)
• Medical conditions (optional, such as hypertension, diabetes, heart disease)
• Current medications (optional, to track potential effects on blood pressure)
• Activity level and lifestyle factors

Blood Pressure and Vital Signs Data

The core health data tracked by the App includes:

• Systolic and diastolic blood pressure readings
• Heart rate (pulse) measurements
• Date, time, and location context of each reading
• Body position during measurement (sitting, standing, lying down)
• Arm used for measurement (left or right)
• Notes and symptoms (headache, dizziness, chest pain, etc.)
• Medication adherence tracking
• Tags and categories (morning, evening, before meal, after exercise, etc.)
• Historical trends and patterns

Device and Usage Information

We automatically collect certain technical information:

• Device type, model, and operating system version
• Unique device identifiers
• App version and usage statistics
• Crash reports and error logs
• General location (city/region level, for weather context)
• Time zone information
• Connected blood pressure monitor device information (model, firmware version)

Connected Devices

If you connect Bluetooth blood pressure monitors:

• Device model and manufacturer information
• Bluetooth connection logs
• Automatic measurement imports
• Device calibration data

How We Use Your Information

We use the information we collect to:

• Track Health Data: Record, store, and display your blood pressure readings and vital signs
• Provide Insights: Generate charts, trends, and statistics to help you understand your cardiovascular health
• Risk Assessment: Identify potentially concerning patterns and provide educational alerts (not medical advice)
• Medication Reminders: Send notifications to help you remember to take medications and measure blood pressure
• Sync Across Devices: Keep your data synchronized if you use multiple devices
• Export and Share: Generate reports you can share with healthcare providers
• Improve the App: Analyze anonymized usage patterns to enhance features and fix bugs
• Customer Support: Respond to your inquiries and provide technical assistance
• Safety and Security: Detect and prevent fraud, abuse, or security issues

Health Data Integration

Apple Health (HealthKit)

If you choose to connect with Apple Health:

• We can read your blood pressure, heart rate, and activity data
• We can write your measurements to Apple Health
• This data is stored locally on your device and in iCloud (if you have Health data sync enabled)
• We do not send Apple Health data to our servers
• You can revoke access at any time in iOS Settings → Privacy → Health

Google Fit

If you choose to connect with Google Fit:

• We can read your blood pressure, heart rate, and activity data
• We can write your measurements to Google Fit
• Data is synced according to your Google Fit settings
• You can disconnect at any time in the App settings or Google account permissions

Data Storage and Security

We implement industry-standard security measures to protect your sensitive health data:

• Encryption: All data is encrypted in transit (TLS/SSL) and at rest (AES-256)
• HIPAA Compliance: Our infrastructure follows HIPAA best practices for health data protection
• Secure Servers: Data is stored on secure cloud servers with regular security audits
• Access Controls: Strict internal access controls limit who can view your data
• Local Storage: Sensitive data can be stored locally on your device for additional privacy
• Automatic Backups: Your data is automatically backed up to prevent loss
• Data Minimization: We only collect data necessary for app functionality

However, no method of transmission over the internet is 100% secure. While we strive to protect your information using commercially acceptable means, we cannot guarantee absolute security.

Data Sharing and Disclosure

We do not sell your personal information or health data. We may share your data only in these limited circumstances:

With Your Consent

When you choose to export and share reports with your healthcare provider or family members

Service Providers

Trusted third-party service providers who help us operate the App:

• Cloud hosting and database providers (encrypted data only)
• Analytics services (anonymized data, excluding health data)
• Customer support tools
• Push notification services

These providers are contractually obligated to protect your data and use it only as we direct. They do not have access to unencrypted health data.

Legal Requirements

We may disclose your information if required by law, court order, subpoena, or to protect our rights and safety. We will notify you unless prohibited by law.

Business Transfers

If Toncho Dev is acquired or merged, your data may be transferred. We will notify you before this happens and you will have the option to delete your data.

Emergency Situations

In genuine medical emergencies where we believe disclosure is necessary to prevent serious harm, we may share relevant health information with emergency services (only with your explicit consent or where legally required).

Your Privacy Rights and Choices

Access and Export

You can access and export all your data at any time through the App settings in multiple formats (PDF, CSV, HL7 FHIR)

Correction

Update your profile information and health data directly in the App

Deletion

Delete your account and all associated data through App settings or by contacting us. Data will be permanently deleted within 30 days.

Notifications

Control reminder frequency and types in App settings or disable push notifications in device settings

Data Portability

Export your complete health data in standard formats that can be imported into other health apps

Health Data

Disconnect Apple Health or Google Fit integration at any time

Marketing Communications

Opt out of promotional emails (we send very few!) by clicking unsubscribe

Children's Privacy

The Blood Pressure Tracker is not intended for children under 13 (or 16 in the EEA). We do not knowingly collect information from children. If you believe a child has provided us with personal information, please contact us immediately and we will delete it.

International Data Transfers

Your data may be stored and processed in the United States or other countries where our service providers operate. We ensure appropriate safeguards are in place for international transfers, including:

• Standard contractual clauses approved by the European Commission
• Adequate data protection agreements
• GDPR compliance for European users

Data Retention

We retain your data for as long as your account is active or as needed to provide services. Specifically:

• Blood pressure readings: Kept until you delete them or close your account
• Profile and health data: Kept until you close your account
• Usage data: Anonymized and aggregated after 12 months
• Deleted accounts: Permanently removed within 30 days (except data we must retain for legal purposes)
• Backup copies: Removed from backups within 90 days

California Privacy Rights (CCPA)

If you are a California resident, you have these additional rights:

• Right to know what personal information we collect, use, and share
• Right to delete your personal information
• Right to opt-out of the "sale" of personal information (we don't sell data)
• Right to non-discrimination for exercising your rights

To exercise these rights, contact us at toncho.dev@gmail.com

European Privacy Rights (GDPR)

If you are in the EEA, UK, or Switzerland, you have these rights:

• Right to access your personal data
• Right to rectification of inaccurate data
• Right to erasure ("right to be forgotten")
• Right to restrict processing
• Right to data portability
• Right to object to processing
• Right to withdraw consent at any time
• Right to lodge a complaint with a supervisory authority

Our legal basis for processing your health data is your explicit consent. You can withdraw consent at any time.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by:

• Displaying a prominent notice in the App
• Sending you an email (if you provided one)
• Updating the "Last Updated" date

Continued use of the App after changes constitutes acceptance of the updated policy.

Third-Party Services

The Blood Pressure Tracker may contain links to or integrate with third-party services (e.g., healthcare provider portals, telemedicine services). This Privacy Policy does not apply to those services. Please review their privacy policies separately.

Analytics and Advertising

Analytics: We use privacy-focused analytics to understand how the App is used. This data is anonymized and aggregated, and never includes health data.

Advertising: The Blood Pressure Tracker is ad-free! We do not display ads or use advertising tracking. Your health data is never used for advertising purposes.

Research and De-Identified Data

We may use de-identified, aggregated health data for research purposes to improve cardiovascular health understanding. This data:

• Is completely anonymized and cannot be traced back to you
• Does not include any personally identifiable information
• May be used in published research or shared with academic institutions
• You can opt out of contributing to research in App settings

Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or your data:

Toncho Dev - Blood Pressure Tracker Team
Email: toncho.dev@gmail.com
Website: https://toncho.dev

We will respond to your inquiry within 30 days.