Glucose and Blood Sugar Track Privacy Policy

Last updated: August 12, 2026
Effective date: August 12, 2026

Our Privacy Commitment

Glucose and Blood Sugar Track is designed with privacy at its core. We believe your health data belongs to you, and we are committed to protecting your personal information with the highest standards of security and transparency.

Information We Collect

Health Data You Provide

• Glucose readings: Blood glucose values, timestamps, and measurement context (before/after meals, fasting, bedtime)
• Additional health metrics: Weight, blood pressure, insulin, medications, carbohydrates, temperature, oxygen, exercise, HbA1c, INR, ketones, and related context when you choose to track them
• Optional context: Meal tags, personal notes you add to your readings, and a self-reported stress level
• Food and nutrition data: Meals you log, meal photos stored on your device, and the daily calorie and macro goals you set
• App settings: Target glucose ranges, reminder preferences, and app configuration
• Camera scanner results: Numeric values you confirm after scanning glucose meter or weight scale displays
• Apple Watch and widget data: Recent readings, time-in-range summaries, medication schedule data, and premium status needed to render widgets, complications, and Watch flows

Technical Information

• Device information: iOS version, device model (for app compatibility)
• App diagnostics and product analytics: Non-health product events such as feature opens, permission results, subscription state, scanner success/failure, and coarse non-identifying buckets used to improve the app
• Attribution data: Apple advertising attribution and SKAdNetwork conversion events where supported by iOS
• System APIs: We access HealthKit, UserNotifications, Core Data, WidgetKit, WatchConnectivity, and camera APIs only for app functionality and only when required permissions are granted

How We Use Your Information

Data Storage and Security

Local Storage First

Security Measures

• iOS data protection: Local data is protected by iOS device security and app sandboxing
• Secure Keychain: Sensitive settings stored in iOS Keychain with hardware security
• No developer-operated cloud sync: Your health records are not uploaded to our servers. Data leaves your device only when you export it, share it, enable Apple Health/Apple platform features, or scan a meal with AI Food Scan (see below). Subscriptions are verified with Apple through our server without any health data.
• Apple Health integration: Secure, permission-based sync with Apple's Health app
• Camera privacy: Meter and scale display scanning happens on-device; those camera frames are never uploaded. Meal photos are sent for analysis only when you use AI Food Scan.
• Analytics limits: Product analytics do not include raw glucose values, raw weight values, blood pressure numbers, personal notes, scanner photos, or other raw health readings.

Data Sharing and Third Parties

Product Analytics and Attribution

The app uses anonymous product analytics to understand app reliability, onboarding completion, feature usage, subscription conversion, and scanner flow quality. These events record feature interactions, never health values. For example, scanner analytics can record whether scanning succeeded, but not the scanned reading itself.

We also use Apple's own attribution frameworks: Apple Search Ads attribution through AdServices, relayed through our attribution endpoint, and SKAdNetwork conversion events. We use no advertising SDKs, we do not track you across other apps or websites, and we do not sell your data.

AI Food Scan

AI Food Scan is an optional Premium feature. Nothing is sent anywhere unless you choose to scan a meal, and you review the photo before it is submitted. When you do scan:

• The photo and any note you add are sent, together with an anonymous app-generated token only, to our food-scan service. That service processes them transiently and never stores or logs them.
• They are forwarded to a third-party AI provider for a one-time nutrition estimate. The provider automatically deletes the inputs and outputs within 30 days and never uses them to train AI models.
• Exceptions: content flagged under the provider's usage policy may be retained for up to 2 years, and data may be kept longer where the law requires it.

No account or identity is attached to a scan. The AI provider is named on the in-app consent screen you see before your first scan, and an anonymous device-integrity check (Apple's App Attest) protects access to the service.

Apple Health Integration

With your explicit permission, Glucose and Blood Sugar Track can sync supported data types with Apple Health, including glucose, weight, blood pressure, insulin, carbohydrates, temperature, oxygen, and related supported metrics. This integration follows Apple's strict privacy guidelines and allows you to:

• Automatically import supported readings from Apple Health and compatible apps
• Share your data with other health apps you trust
• Include your tracked data in Apple Health's comprehensive health picture

Camera Scanner

When you use the camera display scanner, the app uses the iPhone camera to recognize numbers on supported glucose meter and weight scale displays. You must confirm the detected value before it is saved. Camera access can be disabled at any time in iOS Settings.

Apple Watch, Widgets, and Complications

Apple Watch, Home Screen widgets, Lock Screen widgets, and watch face complications use shared on-device data through Apple's App Group and WidgetKit mechanisms. This allows recent readings, time-in-range summaries, and medication reminders to appear outside the main app without creating an account or uploading your health records to our servers.

Your Privacy Rights

Full Control Over Your Data

Children's Privacy

Glucose and Blood Sugar Track is designed for users 13 years and older. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us so we can take appropriate action.

International Users

Glucose and Blood Sugar Track complies with applicable privacy laws including GDPR (European Union), CCPA (California), and other regional privacy regulations. Since personal health records are stored locally on your device by default, health-record transfer risks are minimized.

Changes to This Policy

We may update this Privacy Policy to reflect changes in our practices or for legal and regulatory reasons. We will notify users of significant changes through the app and update the "Last updated" date above. Continued use of the app after changes constitutes acceptance of the updated policy.

Contact Us

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