
Description: VoltSim is an open-source electric circuit simulator software for Windows, Mac and Linux. It allows users to easily create and simulate analog and digital circuits with a user-friendly GUI. VoltSim supports analysis of circuits with various types of passive and active components.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Circuit Builder is a free online tool for building and simulating electronic circuits. It allows users to easily create schematics with a drag-and-drop interface and analyze circuit behavior with built-in simulation features.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API