Soundtheory Gullfoss

Name: Soundtheory Gullfoss
Price: 199 USD

Windows · Mac

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Freedom report

One barScore 4.9

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely2 of 6 device platforms
DocumentedPlans, terms and facts published

Soundtheory Gullfoss is ranked #36 of 39 in audio plugins on Freedom251. It runs on macOS, Windows. There is no free plan. A free trial is offered.

Soundtheory Gullfoss plans and pricing

All plans

Gullfoss $199 once Personal license · three editions: Gullfoss, Gullfoss Live, Gullfoss Master soundtheory.com · 7 Oct 2026

Compared on audio plugins

Free plan: No

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The record

Purpose: Gullfoss is an intelligent equalizer that analyzes audio and adjusts it to improve clarity, detail, spatiality, and balance.
Use cases: Soundtheory describes Gullfoss as suitable for amateur musicians through professional mastering engineers, and for mixing and mastering applications.
Auditory model: Its real-time analysis uses Soundtheory’s computational auditory perception model to identify audible elements competing for attention.
Mix balancing: Gullfoss can address balance issues between sound elements even when the individual tracks are unavailable.
Editions: The product includes Gullfoss, Gullfoss Live for live mixing and tracking, and Gullfoss Master tuned for mastering.
Latency: The standard and Master editions have approximately 20 ms latency; Live has latency below 2 ms and handles transients differently.
Supported systems: The plug-in supports macOS 10.9 or later and Windows 7 or later, and requires a 64-bit host supporting AU, VST, VST3, or AAX Native.
Audio specifications: It supports mono or stereo processing, M/S-compatible stereo, and sample rates from 16 kHz to 384 kHz.
Trial: The fully functional trial lasts two weeks and requires an iLok account and iLok License Manager.
License activations: Soundtheory says an iLok license provides two activations, using dongle, machine, or cloud activation.
License duration: Licenses purchased from June 16, 2024 are limited to 25 years; licenses purchased before that date are perpetual.
Privacy: Soundtheory’s privacy notice says it may collect identity, contact, financial, transaction, technical, profile, usage, and marketing data, and says it does not collect special categories of personal data.
Company: Soundtheory says it emerged in 2016 after nearly 14 years of research; its listed address is in Summertown, Oxford, United Kingdom.
Founded: 2016

Where it ranks on Freedom251

Best Audio Plugins in 2026#36 of 39
Best AI Audio Mixing Software in 2026#33 of 34

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Sources

soundtheory.com/gullfoss· checked 7 Oct 2026
soundtheory.com/downloads· checked 7 Oct 2026
soundtheory.com/support· checked 7 Oct 2026
soundtheory.com/static/Soundtheory%20Privacy%20Notice.p· checked 7 Oct 2026
soundtheory.com/about· checked 7 Oct 2026