GPS Test Tool(Gnss Viewer)

Good app for satellite information visualization!

GPS Test Tool (Gnss Viewer) is a simple and easy-to-use GPS tool on Android system, it supports automatic detection of GPS on Android devices,you can check the GPS reception in your area and update AGPS data for faster fix times,whilst being able to view other GPS and sensor data.It supports GPS, GLONASS, GALILEO, SBAS, BEIDOU and QZSS satellites.

GPS Test Tool has nine different functions:
1.Number of GPS satellites
2.Satellite signal strength
3.Your current speed, heading and altitude are shown as text
4.Show your GPS coordinates
5.Compass function
6.The time in your current time zone
7.And UTC time, etc.
8.View the output of NMEA data
9.Save NMEA satellite data

Coordinate Grids supported by GPS Test Tool:
OSGB, UTM, MGRS, USNG, CH1903

Datums supported by GPS Test Tool:
WGS84, NAD83, NAD27, ED50, AGD66, AGD84, SAD69 plus more

The GPS Test Tool is quite powerful, the most important thing is that there is no in-app purchase and it is completely free.