Cellular Z is a telecom signal quality and Wifi network info, channel info software, the main functions are as follows:
1.Dual SIM mobile phone network information (SIM card serving cell, serving cell signal quality,neighboring cells).
2.Wifi information (connected, nearby Wifi list, Wifi channel 2.5 and 5 GHz).
3. Current location information GPS Satellites
4. Device information (battery, hardware, system).
5.speedtest.
6.Map track,indoor coverage.
PS: READ PHONE STATE & ENABLE LOCATION is necessary , with out these permissions app can show nothing !!!