When glucose alarms† are enabled, the Libre app* notifies you the minute your glucose crosses the level that is set for that specific alarm†. Note: The Urgent Low Glucose Alarm†‡ is turned ON by default and cannot be turned off.
†Alarm notifications will only be received when alarms settings are enabled and turned on and sensor is within 20 feet (FreeStyle Libre 2) or 33 feet (FreeStyle Libre 3) unobstructed of the reading device.
*The FreeStyle Libre systems apps are only compatible with certain mobile devices and operating systems. Please check the Support section of our website for more information about device compatibility before using the apps. Use of the FreeStyle Libre systems apps may require registration with LibreView.
‡To get the Urgent Low Glucose Alarm on your phone with the Libre app, you will first need to start your FreeStyle Libre 2, FreeStyle Libre 2 Plus, FreeStyle Libre 3 or FreeStyle Libre 3 Plus sensor with your phone. If you do not start your FreeStyle Libre 2, FreeStyle Libre 2 Plus, FreeStyle Libre 3 or FreeStyle Libre 3 Plus sensor with your phone, you will not get the Urgent Low Glucose Alarm on your phone.