FairSpeed - Speed Tester

FairSpeed - Speed Tester is an Android application for observing network performance from a phone or tablet. It is intended for measuring and monitoring connection behavior rather than managing network settings. The app can be used when checking mobile data or Wi-Fi conditions, recording how a connection behaves at a given time, or comparing results across different locations.

The project is published by Naxod under the AGPL-3.0-or-later license. Its stated focus is lightweight operation and privacy-oriented measurement, so its role is limited to network performance testing and monitoring on Android devices. It is not a desktop diagnostic suite, a router administration tool, or a general-purpose bandwidth manager.