
Description: Darling is an open-source software that allows you to run macOS applications on Linux. It implements a runtime environment to translate macOS system calls to Linux system calls, enabling macOS apps to run natively on Linux.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: CrossOver is a software that allows you to run Windows applications on Mac and Linux. It converts Windows API calls to POSIX calls on-the-fly, enabling compatibility with thousands of Windows programs without needing a license or virtual machine.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API