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eqMac vs Equalizer APO: catalog facts
eqMac	Equalizer APO
Freemium Free basic and 10-band equalizers; mixer, parametric EQ and other features require Pro.	Free Free and open source under the GPL, distributed through SourceForge.
macOS	Windows
Equalizes all system audio, not a single player Headphone reference presets for thousands of models	Works at the system level, so every application on a device is equalised Parametric and graphic filters, with no practical limit on bands
Many advanced features are Pro-only macOS only	Applications using ASIO or WASAPI exclusive mode bypass it entirely The native interface is a text configuration file; sliders need the separate Peace front end
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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