
Description: ListenToYouTube is a free desktop application that allows you to listen to YouTube videos in the background or with the screen turned off. It works by extracting the audio from YouTube videos so you can enjoy them like a music player.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: 123apps is a suite of office and productivity software that includes a word processor, spreadsheet, presentation tool, and more. It is designed to be an free alternative to Microsoft Office.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API