Compare software

ViPER4AndroidRootlessJamesDSP
Free

The open-source software is available without a license fee.

 Free

Free and open source under the GPL-3.0 licence.

Android Android
  • Processes audio from every app, not just one player
  • Convolver supports impulse responses for headphone correction
  • System-wide audio effects without root
  • Based on the JamesDSP engine
  • Requires root and a Magisk module install
  • Configuration is overwhelming and easy to make sound worse with
  • Needs Shizuku or ADB for initial setup
  • Rootless method has limitations the developer warns may be deal-breaking
Downloadable app Downloadable app
Open source Open source
License not stated License: GPL-3.0
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

Checked September 22, 2026

Checked October 2, 2026

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