
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: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Apprenda is a proprietary application platform as a service (aPaaS) for building and deploying .NET and Java enterprise applications in public, private, and hybrid clouds. It provides capabilities for application lifecycle management, access control, policy enforcement, and workload optimization.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API