CGM Alerts for Libre, Dexcom & Nightscout

What is Sugar Sense?

Sugar Sense is a comprehensive, AI-enhanced diabetes management application designed to provide real-time glucose monitoring, predictive alerts, and family sharing. It serves as a centralized hub for individuals living with diabetes, integrating seamlessly with popular Continuous Glucose Monitors (CGMs) like FreeStyle Libre and Dexcom, as well as the open-source Nightscout platform. The app transforms raw glucose data into actionable insights, offering features like Time in Range statistics, an AI-powered food scanner for carb estimation, and customizable alerts. It functions as a critical safety net and daily management tool, built by someone with over 12 years of personal experience with type 1 diabetes.

What is the main feature of Sugar Sense?

The core feature of Sugar Sense is its ### Predictive Low Alerts and Real-Time Glucose Monitoring. This isn't just about displaying a number; it's about proactive health management.

• Predictive "Heading-Low" Alerts: This game-changing feature analyzes your glucose trend to warn you before you drop into a dangerously low range, allowing time for preventive action.

• Real-Time Data Integration: It pulls live readings directly from your connected CGM (FreeStyle Libre via LibreLinkUp, Dexcom via Share, or Nightscout), ensuring you and your loved ones have the most current information.

• Multi-Platform Accessibility: Your glucose data is accessible at a glance on your iPhone Lock Screen, Apple Watch complications, Dynamic Island, Live Activity, Android home-screen widgets, and Wear OS watches.

• Care Circle Sharing: Enables trusted family members or caregivers to follow your glucose in real-time and receive the same critical alerts, creating a supportive network.

• AI-Powered Insights: Goes beyond data logging to offer pattern recognition and a photo-based carbohydrate estimator, helping you understand the impact of meals and daily activities on your glucose levels.

How to use Sugar Sense?

Using Sugar Sense is designed to be straightforward, focusing on connecting your existing data sources.

1. Download & Connect: Download the app from the App Store or Google Play. During setup, connect it to your existing CGM account (LibreLinkUp for FreeStyle Libre, Dexcom Share for Dexcom sensors) or your Nightscout URL with a read-only token. No extra hardware is needed.

2. Customize Your Dashboard: Once connected, your real-time glucose, trend graph, and Time in Range statistics will appear on the home screen. You can customize alert thresholds for highs, lows, and rapid changes to match your personal targets.

3. Set Up Your Care Circle: Invite family members or caregivers to your private "Care Circle." They will receive the same alerts and can view your glucose trends, providing an extra layer of safety.

4. Utilize Free & Premium Features:

   • Free Tier: Enjoy unlimited real-time glucose monitoring, all core alerts (including predictive lows), basic statistics, logbook, and Care Circle sharing.

   • Premium Subscription: Unlock advanced features like the AI food scanner for carb estimates, deeper AI pattern insights, Apple Watch/Wear OS apps with complications, Live Activity/Dynamic Island display, PDF report generation, and an emergency phone call feature for urgent lows.

Price

Sugar Sense operates on a freemium model, ensuring essential safety features are accessible to everyone.

• Free Forever Plan: Includes real-time glucose monitoring, all customizable alerts (high, low, predictive), graphs, Time in Range statistics, logbook, Care Circle sharing, and data export via CSV or Apple Health/Health Connect.

• Premium Subscription: Offers advanced intelligence and convenience features. Pricing is typically a monthly or annual fee and includes:

  • AI Food Scanner (photo to carb estimate)
  • AI-driven pattern insights and reports
  • Full Apple Watch and Wear OS app access with complications
  • Live Activity and Dynamic Island display
  • Emergency phone call for urgent low alerts
  • Detailed PDF report export for healthcare appointments

  • Family Plan: One subscription can cover up to 6 people in a Care Circle.

Helpful Tips

• Maximize Alerts: Fine-tune your predictive low alert sensitivity. Catching a downward trend early is key to avoiding severe hypoglycemia.

• Leverage the Logbook: Consistently log meals, insulin, and activity. Over time, this data fuels the AI insights, helping you identify personal patterns.

• Use the Care Circle Proactively: Don't just set it and forget it. Educate your Circle members on what the alerts mean and how they can best support you when an alert is triggered.

• Explore Integrations: If you use other health apps, enable sync with Apple Health (iPhone) or Health Connect (Android). This allows Sugar Sense to be part of a broader health ecosystem.

• Troubleshoot "No Data": If you see "No Data," it's usually a sync issue with your CGM provider. Consult the app's detailed setup guides for FreeStyle Libre, Dexcom, or Nightscout for step-by-step troubleshooting.

Frequently Asked Questions

Which CGMs does Sugar Sense work with?

It works with FreeStyle Libre (via LibreLinkUp), Dexcom G6/G7/ONE (via Dexcom Share), and any self-hosted Nightscout site. It can also read manual entries or glucose data from other apps via Apple Health or Health Connect.

Does Sugar Sense work without a CGM?

Yes. You can manually enter blood glucose meter readings, and the app will still provide graphs, statistics, and a logbook. However, real-time automatic alerts require a live CGM connection.

Is my health data private and secure?

Absolutely. Sugar Sense states it is GDPR compliant, encrypts data in transit, and ### never sells or trades user data. You maintain ownership and can export or delete your data at any time.

Can my family see my glucose data?

Yes, through the "Care Circle" feature. You can invite specific people who will then receive shared alerts and can view your real-time glucose trends, all with your explicit permission.

Does Sugar Sense replace my official CGM app or medical device?

No. It is a companion application for data visualization, alerting, and insights. It is not a medical device and should not be used as the sole basis for treatment decisions. Always consult your healthcare provider and follow the guidance from your medical-grade CGM system.

What platforms is it available on?

Sugar Sense is available as a native app for iPhone, Apple Watch, Android phones, and Wear OS watches, keeping all data in sync across your devices.

Is there an Alexa skill?

Yes, a free Alexa skill allows you to ask, "Alexa, ask Sugar Sense what's my glucose?" to get your latest reading and trend on compatible Echo devices.