The FreeStyle LibreLink app is only compatible with certain mobile devices and operating systems. A sensor started by the FreeStyle Libre reader will also communicate with the FreeStyle LibreLink app. ‡ The FreeStyle LibreLink app and the FreeStyle Libre reader have similar but not identical features. A finger prick test using a blood glucose meter is required during times of rapidly changing glucose levels when interstitial fluid glucose levels may not accurately reflect blood glucose levels or if hypoglycemia or impending hypoglycemia is reported by the FreeStyle LibreLink app or when symptoms do not match the app readings. The FreeStyle Libre sensor communicates with the FreeStyle Libre reader that started it or the FreeStyle LibreLink app that started it. † Sensor is water-resistant in up to 1 metre (3 feet) of water. * 60-minute warm-up required when applying the sensor.
