
Description: CalyxOS is an open source mobile operating system based on Android that focuses on privacy and security. It removes proprietary apps and services, restricts permissions from apps, and includes privacy-focused tools.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Fairphone Open is an open source mobile operating system designed for Fairphone devices. It is based on Android and aims to extend device longevity through easy software updates and repairability.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API