
Description: Simulink is a graphical programming environment for modeling, simulating and analyzing multidomain dynamical systems. It provides an interactive graphical environment and customizable set of block libraries for designing, simulating, implementing, and testing a variety of time-varying systems, including communications, controls, signal processing, video processing, and image processing.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GNU Radio is a free and open-source software development toolkit that provides signal processing blocks to implement software-defined radios and signal processing systems. It can be used for rapid prototyping, experimentation, and education.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API