
Description: Faye is an open-source web messaging and notification system based on the publish-subscribe pattern. It allows real-time communication between a server and clients using bidirectional connections over websockets.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Socket.io is a JavaScript library that enables real-time, bidirectional and event-based communication between web clients and servers. It works by creating a persistent connection between the client and server that both can use to start sending data at any time, allowing for faster and more dynamic real-time web applications.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API