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Aonsoku vs Gelly: catalog facts
Aonsoku	Gelly
Free Free and open source under the MIT licence.	Free Free and open source under the GPL-3.0-or-later.
Linux	Linux, Command line
Works with Navidrome and other Subsonic-compatible servers Desktop app instead of a browser tab	Supports both Jellyfin and Subsonic servers Gapless playback and ReplayGain
Needs a Navidrome or Subsonic server to connect to The homepage offers almost no documentation	Needs your own Jellyfin or Subsonic-compatible server Linux only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-or-later
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.