
Description: Apache Mesos is an open source cluster manager that provides efficient resource isolation and sharing across distributed applications or frameworks. It sits between the application layer and the operating system on a distributed system, and makes it easier to deploy and manage applications in large-scale clustered environments.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Rancher is an open-source container management platform that allows users to deploy and manage Kubernetes clusters across multiple cloud providers or on-premises infrastructure. It provides a graphical user interface and API for managing containers and services across multiple clusters.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API