The "GPS info" app for your phone is a utility that shows GPS, GLONASS and BeiDou information read from your phones internal GPS/GLONASS/BeiDou/GALILEO sensor.
"GPS info" has several screens of information:
* Satellites in the sky, shown on a compass
* Signal information. Showing the signal strength, accuracy, azimuth, type etc for each satellites
* Current information about your position (latitude, longitude), speed, bearing etc
* Your position on world map plus sunrise and sunset time.