
Description: HiveMQ is an open source MQTT messaging broker that enables connecting IoT devices to the cloud. It supports features like persistent sessions, security, scaling, and more. HiveMQ aims to provide enterprise-grade MQTT messaging infrastructure.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: CrystalMQ is an open-source message queuing software that enables asynchronous message-based communication between distributed applications. It is lightweight, fast, and scalable.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API