
Description: FlowStone is a visual programming language and development environment for creating interactive applications, simulations, and games. It uses a drag-and-drop interface to connect logic blocks and enables rapid prototyping and development without coding.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: SynthEdit is a free, open source modular software synthesizer editor for Windows. It allows users to graphically create and edit software synthesizer components like oscillators, filters, and envelopes, and connect them to build virtual synthesizers.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API