Glucose Compass ("the app") is a personal health logging tool developed by Alex Bonacci ("we," "us," "our"). This Privacy Policy explains what data the app collects, how it is used, and your rights regarding that data.
Glucose Compass is designed for people with Type 1 Diabetes who want to track glucose readings, meals, insulin doses, and symptoms. It is not a medical device and does not provide medical advice, diagnosis, or treatment recommendations.
The following table reflects all data types handled by Glucose Compass, consistent with our Apple App Store Privacy Label.
| Data Type | Collected? | Stored Where | Linked to You? | Used for Ads? | Purpose |
|---|---|---|---|---|---|
| Glucose readings, meals, symptoms, insulin doses | Yes | On-device only | Yes (locally) | Never | Core app functionality |
| Emergency contact information | Yes | On-device only | Yes (locally) | Never | Emergency alert feature |
| AI provider API keys (if configured) | Yes | On-device secure storage | No | Never | AI feature connectivity |
| Glucose data snapshot (AI queries only) | Yes | Sent to AI provider per query; not retained | No | Never | AI pattern analysis |
| Crash reports and diagnostics | Yes | Expo/EAS (anonymized) | No | Never | App stability |
| Ad interaction data (free tier only) | Yes | Google AdMob | No | Not from health data | Non-personalized ads |
| Purchase receipts (Remove Ads / Supporter) | Yes | RevenueCat / Apple | Yes | Never | Subscription management |
Glucose, insulin, meal, and symptom data are stored exclusively on your iPhone using iOS secure local storage. This data:
When you use the AI analysis feature, a snapshot of your recent glucose and meal data is sent to your configured AI provider (Google Gemini or your own API key) for that query only. AI providers do not retain health data beyond the scope of the individual request, per their published terms.
Free-tier users see non-personalized ads served by Google AdMob. These ads:
requestNonPersonalizedAdsOnly: true is set on every ad requestUsers who purchase the "Remove Ads" one-time purchase see no ads.
Emergency contact names and phone numbers you enter are stored locally on your device only. They are used exclusively to send alert notifications through iOS. This information is never transmitted to our servers or any third party.
Emergency alert features are permanently free. They are not affected by subscription status, ad preferences, or any other commercial element of the app.
Glucose Compass requests camera access to enable you to photograph your glucose meter or food labels when logging entries. Photos are used only for the logging session and are stored locally on your device. We do not upload photos to any server.
AI features are optional and require you to configure an AI provider. The app supports:
All AI-generated content in the app includes a medical disclaimer. AI outputs are informational only and must not be used to make medical decisions. Always consult your healthcare provider.
The following third-party services receive limited data as part of app functionality:
Because your health data is stored only on your device, you can delete it at any time by uninstalling the app. Uninstalling Glucose Compass removes all locally stored glucose readings, logs, emergency contacts, and settings.
To request deletion of any data held by RevenueCat (purchase records) or Expo (crash logs), contact us at the address below and we will facilitate the request with those services.
Glucose Compass is rated 4+ on the App Store. We do not knowingly collect personal information from children under 13. The app does not include social features, user-generated content visible to others, or any mechanism for sharing data between users. If a parent or guardian believes their child has provided personal information through the app, please contact us and we will assist with deletion.
Depending on your location, you may have rights including:
To exercise any of these rights, contact us using the information below. Because health data is stored locally, we may direct you to delete it directly from your device.
We may update this Privacy Policy when the app adds new features or third-party integrations. The "Last Updated" date at the top of this page reflects the most recent revision. We will notify users of material changes through the App Store release notes or an in-app notice.
Alex Bonacci
Email: bonaccivfx@gmail.com
Support: bonaccivfx.com/t1dg/support
We respond to privacy inquiries within 30 days.