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Felicity Music Player vs MonsterMusic: catalog facts
Felicity Music Player	MonsterMusic
Free Free and open source under the AGPL-3.0 licence.	Free Free and open source under the Apache 2.0 licence.
Android	Android
Native DSP with 10-band and parametric equalizers Milkdrop visualizations	Plays local files without a streaming account Built-in advanced equalizer
Early alpha, offered as a trial build Plays local files only	Android only No releases published on GitHub; installed through F-Droid or by building it
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: Apache-2.0
Not stated if an account is needed	No account needed
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.