GPS NMEA Tracker is an application that allows you to have a visualization on what's happening on your phone's GPS. NMEA or National Marine Electronics Association. NMEA is used for boat navigation for tracking, monitoring, and control. Through this application, you can decode the position by simply looking at the coordinates indicated. It has also time and date for accuracy. In additional, you can filter the frame types and tick what's applicable. Lastly, this application is designed for free.