Monitoring mobile application Libre app

patient data managementalert managementdiabetes management

Overview
The Libre app delivers up‑to‑date glucose readings and analysis for users of FreeStyle Libre sensor systems. It provides real‑time values, trend information, reports and optional features to support glucose management on compatible smartphones and supported smartwatches.

Main features

• Real‑time glucose readings: automatic updates on the smartphone every minute when in range to support timely decision making.
• Current glucose reading: clear presentation of the latest sensor glucose value.
• Trend arrow: visual indicator of glucose direction and rate of change.
• Glucose history: access to up to 12 hours of historical sensor values for short‑term review.
• Daily graph: 24‑hour overview for pattern recognition.
• Reports and insights: time‑in‑range, average glucose, GMI (Glucose Management Indicator), daily patterns and summary reports for longitudinal analysis.
• Customizable alarms: high/low glucose and signal loss alarms with options to silence selected alarms for up to six hours (silent mode).
• Libre Assist (new feature): photo or typed meal input to predict glucose impact and provide personalized suggestions (Snap → Predict → Know).
• Smartwatch support: Libre app for Watch displays glucose values, trends and notifications on the wrist (currently available for Apple Watch).
• Shareable readings: secure sharing via LibreView for healthcare providers and LibreLinkUp for family/caregivers.

Libre Assist (food guidance)

• Snap: take or upload a photo of a meal or enter a description in the app.
• Predict: the app estimates potential glucose impact based on the provided input.
• Know: receive personalized post‑meal recommendations and tips to make future meals more glucose‑friendly.

Alarms and notifications

• Glucose alarms notify when values exceed configured high or low thresholds.
• Signal loss alarm notifies if the sensor loses connection with the app.
• Silent mode allows muting selected alarms (including signal loss) for up to six hours; visual/vibration alerts may still occur depending on device settings.
• Smartwatch notifications mirror the smartphone app; appropriate phone settings and connectivity are required to receive alerts on the watch.

Data, reports and sharing

• Standard reports include Time in Range, Average Glucose, Daily Patterns and Low Glucose Events for clinical or self‑management review.
• Data can upload automatically to LibreView (cloud) when the device has internet connectivity.
• Secure sharing options: LibreView for healthcare teams and LibreLinkUp for caregivers or family members.

Compatibility and requirements

• Compatible with FreeStyle Libre 2 Plus and FreeStyle Libre 3 Plus sensors; sensor warm‑up of 60 minutes is required when starting a sensor.
• The Libre app and Libre app for Watch require compatible mobile devices and operating systems; verify device compatibility before deployment.
• Libre app for Watch requires the smartphone to be within range of the sensor and watch to receive mirrored notifications.
• Use of cloud features may require registration with LibreView and internet access.

Safety and limitations

• Predicted glucose impact and personalized suggestions depend on user‑entered food data and individual factors; actual glycemic response may vary with activity, stress, medication and alcohol.
• Libre Assist uses generative AI and may not always be accurate; it is not intended for making treatment decisions.
• Alarms are effective only when enabled and when the sensor is within the specified communication range of the reading device (e.g., FreeStyle Libre 2: ~20 feet; FreeStyle Libre 3: ~33 feet unobstructed).
• Silent mode mutes audible alerts for the selected period; visual and haptic notifications may still occur according to device settings.

How it works (quick flow)

• Install the Libre app on a compatible smartphone.
• Pair the app with a compatible FreeStyle Libre sensor (Libre 2 Plus or Libre 3 Plus).
• View real‑time readings, trends and reports on the phone and supported smartwatch.
• Use Libre Assist to assess meal impact and obtain recommendations.
• Share data securely via LibreView or LibreLinkUp.

Specifications / technical details

• Product: Libre app (mobile application for FreeStyle Libre systems).
• Compatible sensors: FreeStyle Libre 2 Plus, FreeStyle Libre 3 Plus.
• Sensor warm‑up: 60‑minute warm‑up required when starting a sensor.
• Update frequency: glucose data updates automatically on the smartphone every minute when in range and properly connected.
• Watch compatibility: Libre app for Watch available for supported smartwatches (Apple Watch currently noted); watch displays mirrored readings and notifications.
• Alarms: configurable glucose alarms (high/low) and signal loss alarm; silent mode can mute selected alarms up to six hours.
• Data sharing: automatic upload to LibreView (requires internet); sharing with LibreLinkUp for caregivers; LibreView meets recognized security standards.
• Limitations: predictions based on user input; AI‑based features are not intended for treatment decisions; device and OS compatibility restrictions apply.