
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: Xiaomi HyperOS is a custom Android firmware for Xiaomi devices. It is based on the stock Xiaomi firmware but has additional features, customizations, and optimizations. HyperOS aims to provide a faster, smoother, and more customizable experience compared to the stock MIUI firmware.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API