
Description: CloudStack is open source cloud computing software that is used to deploy and manage large networks of virtual machines. It provides a web interface and APIs for managing compute, networking, and storage resources pooled from hosts.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Google App Engine is a platform for building scalable web applications and mobile backends. It provides automatic scaling, distributed caching, health checks and other services to make app development easier.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API