No, with the FreeStyle Libre 3 system, you do not need to scan to receive a glucose reading. When your FreeStyle Libre 3 sensor is paired with your smartphone, you will automatically see the latest glucose information after you open the FreeStyle Libre 3 app or when you receive an alarm* notification on your compatible smartphone.

The user’s device must have internet connectivity for glucose data to automatically upload to LibreView and to transfer to connected LibreLinkUp app users.

* Notifications will only be received when alarms are turned on and the sensor is within 33 feet unobstructed of the reading device. You must enable the appropriate settings on your smartphone to receive alarms and alerts, see the FreeStyle Libre 3 User’s Manual for more information.

The FreeStyle Libre 3 app is only compatible with certain mobile devices and operating systems. Please check our compatibility guide for more information about device compatibility before using the app.