is a well-known Android application designed for network security auditing and penetration testing. It allows users to intercept and inspect unencrypted web traffic on a connected Wi-Fi network. While it gained notoriety for its ability to "sniff" active sessions, it serves as a critical tool for illustrating the importance of secure browsing.

Excellent for discovering devices on your network and checking for security holes. Google Play Store

It is vital to understand the legal landscape surrounding tools like Faceniff. Using this application to intercept traffic, access accounts, or steal data from other individuals without their explicit consent is illegal in most jurisdictions. It constitutes a violation of privacy laws and computer fraud acts.