The Freestyle Libre is a continuous glucose monitor (CGM) device designed specifically for those with diabetes to monitor their glucose levels in real time. It consists of a tiny sensor that is worn at the upper arm’s back which measures the level of glucose within the fluid interstitial. It also includes an app for smartphones or readers to scan the sensor to get instant results. The system gives data and trends that aid in managing blood sugar levels, remove fingerstick testing in most instances and aids in better control of diabetes with ease and convenience.