SnoopSnitch!

AIMSICD is an Android app to detect IMSI-Catchers. These devices are false mobile towers (base stations) acting between the target mobile phone(s) and the real towers of service providers. As such they are considered a Man-In-The-Middle (MITM) attack. This surveillance technology is also known as "StingRay", "Cellular Interception" and alike. Find out more in our Wiki on GitHub.

Simple and reliable program to detect activity of GSM Monitoring System equipment designed for active and passive interception of voice and data of any GSM networks. Supports up to 4 GSM bands (850, 900, 1800, 1900), making it applicable anywhere in the world where GSM network is available

The GSM Security Map at gsmmap.org compares the protection capabilities of mobile networks. This app collects data and adds it to GSM Map.This application currently only works on Android 4.1.2 Samsung S2 and S3 devices and requires root priviliges during the mobile network data capture.

SnoopSnitch xLite is a light weight and not funded, extended support version of the original SnoopSnitch from Security Research Labs.