
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: /e/ is a free and open-source Android-based mobile operating system that emphasizes privacy and security. It does not include any proprietary Google services or apps, instead providing free-to-use and privacy-respecting alternatives.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API