
Description: OpenBoard is a free and open source interactive whiteboard software for Windows, macOS, and Linux. It allows teachers and students to draw, annotate over documents and presentations, import images, record audio, capture screenshots and more, making it useful for presentations and online lessons.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Twiddla is an online whiteboarding and collaboration tool that allows multiple people to brainstorm, edit documents, and annotate images in real-time. It has built-in chat and screen sharing for remote teamwork.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API