The FreeStyle LibreLink app is approved for use with FreeStyle Libre and FreeStyle Libre 2 system sensors. Now you can check your glucose by scanning your sensor with your phone or use FreeStyle Libre 2 system sensors to receive alarms when your glucose is low or high. [1] [2] You can use the FreeStyle LibreLink app to: * View your current glucose reading, trend arrow and glucose history * Receive low or high glucose alarms with FreeStyle Libre 2 system sensors [2] * Add notes to track your fo