Comparison

Multiband Haas Effect vs GSDSP MagicFusion

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Multiband Haas Effect

This audio plugin enhances stereo width by applying micro-delays to specific frequency bands. It creates a spacious sound while preserving bass impact and avoiding artificial treble. Adjust crossover frequencies and delay settings for each band to achieve desired stereo expansion.

Highlights
  • Multiband stereo width enhancement
  • Adjustable crossover frequencies
  • Independent Haas delay per band
  • Preserves bass impact
  • Avoids artificial treble
  • Mono to stereo conversion
Features
Read full description

Haas effect is a micro-delay applied to either the left or right channel of audio (but not both). This simple effect creates a realistic and natural-sounding increase in the width of the stereo field that still sounds good when mixed back to mono. It is the most simple and effective way to take a mono input and make it sound like stereo. But Haas effect has some problems. First, it can create phase cancellation problems in the bass frequencies, causing them to loose volume. Second, it can sound a bit artificial at high frequencies. This multi-band Haas effect plugin is a simple way to get the stereo width you need in the midrange frequencies without loosing the impact of the bass or making the treble sound phasey. You select any number from one to four bands, each with its own separate Haas delay setting and adjustable crossover frequencies. This makes mono audio sound wide and spacious while preserving the original tone and spectrum transparently.

About

GSDSP MagicFusion

This advanced audio effect plugin offers precise spectral fusion and multi-curve vocoding. It allows users to extract spectral characteristics from one audio source and apply them to another, enabling detailed transformations from subtle shading to extreme effects.

Highlights
  • Multi-curve spectral vocoding
  • Frequency-domain processing
  • Independent fusion amounts per frequency
  • Dynamic response control
  • Formant shifting
  • AUv3 audio effect plugin
Features
Read full description

The world’s first frequency-domain vocoder with multi-curve control and precision spectral fusion. Multi-Curve Spectral Vocoding MagicFusion is a multi-curve spectral vocoder workstation operating entirely in the frequency domain. Instead of relying on bandpass filters and envelope followers, it extracts the spectral characteristics of a modulator and applies them to a carrier, enabling precise, customizable vocoding across the entire spectrum. Apply independent fusion amounts per frequency or frequency range, then mix, modulate, and spread them to create anything from subtle vocal shading to extreme spectral transformations. Vocoder Signal Flow MagicFusion requires two audio inputs: the carrier (main input) and the modulator (sidechain). The plugin extracts the modulator’s spectral envelope and applies it to the carrier, creating a fused signal where both sources interact. This process provides clean, flexible control over the degree of spectral fusion and allows highly detailed shaping across the frequency spectrum. Dynamic Response & Formants Adjust the Smooth control to define how quickly the vocoder reacts, from fast, precise transitions to slower, more rounded movement. The Formant parameter shifts the spectral character of the modulator, while Detail adjusts the complexity of the filter response — from clean, intricate results to more organic, pumping behavior. MagicFusion is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products

Screenshots

Multiband Haas Effect4 screens
GSDSP MagicFusion3 screens

Verdict

The call

The clearest difference is price: Multiband Haas Effect at $5.99 against GSDSP MagicFusion's $29.99. GSDSP MagicFusion's advantage is rating (5.0 vs 4.0). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Multiband Haas Effect costs $5.99 and GSDSP MagicFusion $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

GSDSP MagicFusion holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Multiband Haas Effect ships an update every 3 weeks, GSDSP MagicFusion every 6 weeks. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
Multiband Haas Effect versus GSDSP MagicFusion: the parameters behind the verdict, then further details
ParameterMultiband Haas EffectGSDSP MagicFusion
Price$5.99 — better$29.99
Rating4.0 (5 ratings)5.0 (4 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings5 — better4
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size4 MB69 MB
Age rating4+4+
DeveloperBlue Mangoo Consulting Company LimitedGustav Scholda

Customer experience

Multiband Haas Effect

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

GSDSP MagicFusion

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Multiband Haas Effect

No in-app purchases

None

GSDSP MagicFusion

No in-app purchases

Questions

Is Multiband Haas Effect free?
Multiband Haas Effect costs $5.99, with no in-app purchases.
Is GSDSP MagicFusion free?
GSDSP MagicFusion costs $29.99, with no in-app purchases.
Which has better reviews, Multiband Haas Effect or GSDSP MagicFusion?
GSDSP MagicFusion is rated higher. Multiband Haas Effect averages 4.0 out of 5 from 5 ratings, while GSDSP MagicFusion averages 5.0 from 4 ratings.
Do Multiband Haas Effect or GSDSP MagicFusion have ads?
Neither Multiband Haas Effect nor GSDSP MagicFusion shows ads.
Which is updated more often, Multiband Haas Effect or GSDSP MagicFusion?
Multiband Haas Effect ships an update every 3 weeks, and GSDSP MagicFusion every 6 weeks. Most recently, Multiband Haas Effect was updated on November 3, 2026 and GSDSP MagicFusion on November 3, 2026.

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