
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: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Scribblar is a free online collaborative whiteboarding tool that allows multiple users to draw, write and edit images in real-time. It's useful for brainstorming sessions, presentations, teaching and team collaboration.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API