
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: Havoc-OS is a custom Android ROM focused on performance, customization, and new features. It is based on LineageOS and offers extra customization options like theming support, UI tweaks, and unique features not found in stock Android.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API