UltraStar Play is a very popular free and open-source karaoke singing game with song editor for desktop, mobile, and smart TV, developed using Unity. It is inspired by the classic Singstar and UltraStar music game series. With support for multiple languages and platforms, it offers a versatile and accessible experience for music lovers of all ages and skill levels.

Winyl is a small, free, open-source and fast digital audio player and music library management application for Windows. With it, you can listen to music and radio, rate your favorite tracks, create playlists, browse song lyrics, and tag music effortlessly.

ProDAD Erazr is a powerful video editing tool for Windows, developed by proDAD from Germany. It's designed to remove unwanted objects, people, or blemishes from your video footage with ease and precision. It empowers both amateur and professional editors to seamlessly erase distractions and enhance the visual quality of their videos.

TVBox is a very powerful Internet movie and TV application for various Android devices (especially suitable for smart TVs and TV boxes), developed by o0HalfLife0o from China. It is extremely simple to use: install, run, find and enter a valid video playback source address, then you can watch a large number of high-definition film and television resources for free. Even better, it's completely free, open-source and has no ads or functional restrictions, and no membership required.

Spotify is the world's leading genuine music streaming service platform for both PC and mobile platforms, founded in 2006 by Daniel Ek and Martin Lorentzon from Sweden. It provides both free and paid services, and has a wide range of users around the world. Free users will be subject to certain advertisements when using Spotify's services, and there will also be some restrictions on functionality. Paid users have no ads, better sound quality, and additional features such as downloading music and offline listening.