
Description: Xcos is an open-source graphical programming tool for modeling and simulating dynamical systems, specifically designed for control systems modeling. It features block diagram modeling, simulation, data plotting, and embedded code generation.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Circuit Solver Web is a free online circuit simulator and schematic capture tool. It allows users to easily design and simulate circuits with a simple drag-and-drop interface without the need to install any software.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API