
Description: Mozilla Stumbler is an open source tool that allows users to map the locations of Wi-Fi networks. It functions by detecting wireless network signals as the user carries their device around an area.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OpenSignal is a free app that allows users to map cellular, Wi-Fi, and other signals in their area. It crowdsources data from users' devices to build maps showing the coverage and performance of various networks.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API