
Description: Prott is a web and mobile app prototyping tool that allows designers and developers to quickly create interactive prototypes and share them with stakeholders for feedback. It has a simple drag-and-drop interface to build screens and connect them with transitions and gestures to simulate app behavior.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: InVision is a web-based prototyping and collaboration tool used by designers and developers to create interactive prototypes and get feedback on designs. It allows rapid prototyping without coding and easy collaboration across teams.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API