Apps

Android Apps for GSM signal analysis

GSM Field Test [1]

Logs signal strength and geolocation viewable live as a big fat line of dots on a google map. Logs are downloadable as kml files.

Network Signal Info [2]

Shows GSM dBm or WIFI strength on a meter and shows info on cell tower locations, your IMSI and other details about your phone and network. Also logs info downloadable as kml files.

RF Signal Tracker[3]

Another RF signal app

Web based tools

Open Cell ID [4]

GSM Signal strength heatmaps, base station locations, API and Android app.