
Description: Enyo is an open source JavaScript application framework developed by Hewlett Packard Enterprise for building cross-platform web applications. It utilizes modern web standards and provides structure, tools, and libraries for rapidly developing apps that can run on phones, tablets, and desktop browsers.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Polymer is an open-source JavaScript library for building web applications using Web Components. It allows developers to create custom, reusable HTML elements with encapsulated functionality and styles.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API