
Description: GeekTool is a free, open source application for macOS that allows users to display various types of information on their desktop using plugins. Information like system stats, weather data, stock quotes, and more can be shown and automatically updated.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Screenlets is an open source desktop widget engine for Linux. It allows users to add miniature applications like clocks, RSS readers, system monitors, sticky notes, and more to their desktop.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API