A free program for Android, by Abbott Diabetes Care Inc..

FreeStyle Libre 3 is a comprehensive, secure, and easy-to-use app that is compatible with the FreeStyle Libre 3 sensor. It is designed to work in the background and only requires an Internet connection when it is used to check for glucose levels. It can be downloaded to your smartphone or tablet for free and works on most Android devices.

FreeStyle Libre 3 is a tool that you can use to take your measurements and view the results. The sensor is not intended for continuous monitoring, and the app will only provide a summary of the results and an alert if a reading is available.