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FxSound vs Boom 3D: catalog facts
FxSound	Boom 3D
Free Free and open source. Hosting, hardware and any external services are separate.	Paid Paid desktop application from Global Delight.
Windows	Windows, macOS
Includes sound presets and equalizer controls Offers system audio enhancement settings	Works system-wide instead of being tied to one player 31 bands give fine-grained EQ control
Audio effects can change the original sound and depend on the playback setup.	Paid app with no meaningful free tier for daily use 3D surround effect is subjective and won't suit every listener
Downloadable app	Downloadable app
Open source	Closed source
License: AGPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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