
Description: UltraStar Deluxe is a free and open source karaoke singing game. It allows users to sing along to music tracks and scores them based on accuracy. Supports many customizable features, has an active community, and works on Windows/macOS/Linux.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: KaraFun is a karaoke software that allows users to sing along to their favorite songs with customized backgrounds and effects. It comes with a library of thousands of karaoke tracks across various genres.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API