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StreamMusic vs Coppelia: catalog facts
StreamMusic	Coppelia
Free Downloadable from the official site and the App Store; the app is not open source.	Free Free and open source under the Apache 2.0 licence.
Windows, macOS, Android, iOS	macOS, Linux, Android
One client for Subsonic, Navidrome, Jellyfin, Emby, Plex and Audio Station Runs on Android, iOS, macOS and Windows	Offline pinning with download and cache controls Smart lists built from listening rules
Not open source No Linux version	Requires a Jellyfin server iOS download offered only as a simulator build
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	Account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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