
Description: Revolt is an open source messaging platform that focuses on security and privacy. Key features include end-to-end encryption, custom theming, channel organization with categories, and the ability to host your own servers.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Engage Spaces is a virtual event platform that allows organizations to host customized branded events such as conferences, trade shows and networking sessions. It includes features like interactive booths, video conferencing, live chat and analytics.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API