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ViPER4Android vs Boom 3D: catalog facts
ViPER4Android	Boom 3D
Free The open-source software is available without a license fee.	Paid Paid desktop application from Global Delight.
Android	Windows, macOS
Processes audio from every app, not just one player Convolver supports impulse responses for headphone correction	Works system-wide instead of being tied to one player 31 bands give fine-grained EQ control
Requires root and a Magisk module install Configuration is overwhelming and easy to make sound worse with	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 not stated	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.