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Harmony Music vs OpenTune: catalog facts
Harmony Music	OpenTune
No screenshots available	No screenshots available
Best for: Listening to YouTube Music without an account or ads	Best for: YouTube Music listeners on Android who want ad-free background playback
Free Free to download and use.	Free Free and open source under the GPL-3.0-or-later licence.
Windows, Linux, Android	Android
No login or Google account needed No ads while streaming All 3 strengths for Harmony Music No login or Google account needed No ads while streaming One codebase for mobile and desktop	Ad-free and background playback Offline downloads and synchronized lyrics All 4 strengths for OpenTune Ad-free and background playback Offline downloads and synchronized lyrics Tempo, pitch and normalization controls Optional login to sync your library
Depends on YouTube Music, which can break unofficial clients Not available in the official Google Play store	Unofficial client that depends on YouTube Music and can break when it changes Android only
Downloadable app	Downloadable app
Not open source	Open source
License not stated	License: GPL-3.0-or-later
No account needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Harmony Music github.com/anandnet/Harmony-Music github.com/anandnet/Harmony-Music/releases/latest Catalog checked October 2, 2026	Official website Full listing and sources Sources for OpenTune opentune.netlify.app Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.