KaraFun vs Performous

KaraFun is a karaoke service for singing together, with singing battles and music quizzes on Android, iOS, macOS, web, and Windows. Its free plan includes free songs, Premium song previews, access to try features, and one quiz. Premium costs £7.99 a month and adds all songs, playlists, offline sync, unlimited quizzes and Battle, and remote connections for up to 20 people. Singers can adjust key and tempo and select lead, backing, or guide vocals; guests can browse the catalog on a smartphone and add songs to the queue. KaraFun says it adds more than 400 new karaoke songs each month. Offline Sync can keep up to 1,000 songs on a device. Vocal Match compares a user's voice with songs and is available only on iOS and Android. Premium is for private use; professional or public performances require a professional subscription. Pro costs £39.99 a month and includes a commercial license and sound recording rights coverage with synchronized lyrics for its licensed catalog. Public performance royalties remain the customer's responsibility. One account can be used on only one device at a time, though the app may be installed on multiple devices.

Performous is free software combining karaoke, band games, and dancing on Windows, macOS, and Linux. Its modes include vocals, lead, rhythm and bass guitar, drums, and dancing, with multiplayer support. Scored singing shows pitch so players can adjust their performance; karaoke mode displays lyrics without notes or scoring. The project says pitch detection works with laptop or webcam microphones. Controllers are autodetected, and the game can use a keyboard, microphones, USB guitars and drums, and dance pads. Supported song formats include Frets on Fire, UltraStar, SingStar XML, and StepMania. Composer edits and converts notes for music games, offering pitch analysis, zoomable timing, note synthesis, and format import and export. Composer lists SingStar XML, UltraStar TXT, and Frets on Fire MIDI formats. Free karaoke song packages are available under different libre and restricted license terms. The site says its free-song page does not yet include band-game or dancing songs. Performous is licensed under GNU GPL version 2 or later, with documentation, Discord, and a GitHub feedback page.