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Toneboosters Equalizer vs Gullfoss: catalog facts
Toneboosters Equalizer	Gullfoss
Paid Paid plugin sold directly by ToneBoosters.	Paid Costs $199.00, with a trial available before buying.
Windows, macOS	Windows, macOS
Analog-modeled sound at a lower price than many competitors Real-time spectrum view built in	Few controls, so it can improve a mix in seconds Low-latency Live edition for tracking and live mixing
Commercial plugin, no free version One of many EQ plugins in a crowded market	Paid software with a one-off price of $199 Master edition uses more CPU
Downloadable app	Downloadable app
Closed 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 October 2, 2026

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