The app shows a lot of information from your device, for example:
- It browses the WiFi access points;
- It analyzes the WiFi channels and it shows the signal strengths;
- It browse the telephone cells, and it shows some more information (GSM, UMTS, ...) not directly available, as the SIM card IccId, country, ....
Works on multiple SIMs in Android 5.1 and up.