
Description: ProtoPie is a prototyping tool for designing interactive user interfaces and user flows for mobile and web apps. It allows designers and developers to quickly create hi-fi prototypes and simulate interactions without coding.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Jitter is a free, open-source video conferencing solution designed for online meetings, webinars, teaching, and remote presentations. It offers high-quality video and audio calls, screen sharing, chat and other collaboration features.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API