
Description: Koa is a popular open source web application framework for Node.js that uses modern JavaScript features to serve scalable web apps. It provides a minimalist approach, rich middleware, and a key focus on error handling to build efficient and robust apps.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: ExpressJS is a popular, minimalist web application framework for Node.js. It provides helpful functionality for building web servers and APIs, including routing, middleware, view rendering, and more. ExpressJS aims to make building web applications with Node.js easier and faster.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API