
Description: Project Sandcastle is an open source app that allows you to install Android on certain mobile devices that originally ran other operating systems. It gives new life to older phones by letting you use Android instead.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Replicant is a free and open source operating system that aims to replace all proprietary Android components with free software alternatives. It is compatible with several Android devices and provides increased privacy, security, and control over your data.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API