
Description: Rethink is an open-source database management system that supports JSON documents and real-time push queries. It has a query language that allows you to query, join, and aggregate data easily.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Command E is a free, open-source file manager for macOS that provides an alternative to Finder. It features multiple tabs, custom keyboard shortcuts, advanced search, remote access, an integrated terminal, and other power user functionality.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API