Comparison

midiLFOs vs GSDSP Quantum Distortion

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

Head to head
About

midiLFOs

This app generates MIDI modulation data using four independent LFOs. It can control parameters in other music apps or external synthesizers, offering various waveform shapes and modulation possibilities.

Highlights
  • Four independent LFOs
  • 7-bit MIDI CC message generation
  • Multiple standard LFO shapes
  • LFO rate and amplitude modulation
  • AUv3 MIDI effect support
  • MIDI clock and Ableton Link sync
  • MIDI input mapping
Read full description

midiLFOs is a MIDI controller app and AUv3 MIDI effect that sends MIDI modulation control data to other music apps and external synthesizers. It has four independent LFOs that send 7 bit MIDI CC messages in repeating Low Frequency Oscillating patterns. The LFOs can be the various standard shapes (sine, saw, triangle, square, sample and hold) but can also modulate each others amplitude and rate to create even more interesting shapes. midiLFOs does not make music or sound by itself, it controls other MIDI capable synth apps and devices in your studio. You can use it to modulate the filter cutoff frequency of your favorite synth app, the pan position of the hi hats in a drum machine app, the feedback amount of a delay effect, or the pitch of an external hardware synthesizer. Or you can do all four at the same time. midiLFOs features: - Four independent LFOs that send 7-bit MIDI CCs - Easily configure CoreMIDI port, channel, CC# per LFO - Use in other apps as a MIDI Audio Unit Effect - Easily adjust shape, rate, offset, lag per LFO - Modulate the rate and amount of an LFO using other LFOs - Sync LFOs to MIDI clock or Ableton Link - Map trigger, LFO rate, and modulation amount values to incoming MIDI Designed to be easy to configure and use, midiLFOs gives you a quick to configure and easy to use MIDI LFO controller toy with extra features that also make it a useful pro music studio tool. AUv3 support requires an AU host app that supports MIDI effects, such as AudioBus 3, AUM, etc.

About

GSDSP Quantum Distortion

Explore four distinct distortion effects—Saturation, BitCrush, Ring Modulation, and Downsampling—blended and controlled via an intuitive XY pad. Shape harmonics, reduce digital resolution, introduce inharmonic motion, and create classic digital degradation for unique audio textures.

Highlights
  • Four distortion algorithms (Saturation, BitCrush, Ring Modulation, Downsampling)
  • Intuitive XY pad for blending effects
  • Custom waveshaping saturation
  • BitWarp for tonal variation
  • Tunable oscillator for ring modulation
  • Adjustable downsampling rate and jitter
  • AUv3 audio effect plugin
Features
Read full description

Four complementary distortion algorithms — Saturation, BitCrush, Ring Modulation, and Downsampling — blended and shaped through an intuitive XY pad. Saturation Shape harmonics using Quantum Distortion’s custom waveshaping saturation. Adjust Drive to set the intensity from subtle warmth to strong coloration, and use Asymmetry to introduce controlled even-harmonic emphasis of vintage tube characteristics. BitCrush Reduce digital resolution using BitCrush and reshape the crushed signal with BitWarp, which bends the quantization curve for additional tonal variation. This combination allows precise control over both the amount of reduction and the character of the resulting digital artifacts. Ring Modulation Introduce inharmonic motion using ring modulation, generated by multiplying the input with a tunable oscillator. Adjust frequency and amount in real time to create anything from light metallic shading to dense, shifting sidebands. Downsampling Lower the sample rate using Downsampling, reducing temporal resolution for classic digital degradation effects. Set the rate down to 200 Hz or introduce Jitter for controlled randomness, adding instability and movement to the downsampled signal. XY Pad Blending Navigate between the four distortion algorithms using the XY pad, allowing smooth transitions or static blends across the processing modes. The background updates to reflect the current region, providing clear visual feedback while exploring hybrid distortion shapes and interactions. Quantum Distortion 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

midiLFOs4 screens
GSDSP Quantum Distortion3 screens

Verdict

The call

The clearest difference is price: midiLFOs at $4.99 against GSDSP Quantum Distortion's $14.99. GSDSP Quantum Distortion's advantage is review sentiment (100% vs 79%) and update cadence (every 5 weeks vs every 3 months). On rating, ratings volume, ads and in-app purchases 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

midiLFOs costs $4.99 and GSDSP Quantum Distortion $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for midiLFOs against 5.0 for GSDSP Quantum Distortion. Both are backed by a comparable volume of ratings — 21 and 10 respectively. Written reviews are what separate them: 79% of midiLFOs's written reviews are positive against 100% of GSDSP Quantum Distortion's.

UpkeepUpdate frequency

midiLFOs ships an update every 3 months, GSDSP Quantum Distortion every 5 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
midiLFOs versus GSDSP Quantum Distortion: the parameters behind the verdict, then further details
ParametermidiLFOsGSDSP Quantum Distortion
Price$4.99 — better$14.99
Rating4.9 (21 ratings)5.0 (10 ratings) — better
Positive reviews78.6% of reviews100.0% of reviews — better
Number of ratings21 — better10
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.4 — better12.0
Further details — not scored
Size3 MB80 MB
Age rating4+4+
DeveloperArthur KernsGustav Scholda

Customer experience

midiLFOs

All ratings21 ratings
Positive95.2%
Neutral0.0%
Negative4.8%
Written reviews14 reviews
Positive78.6%
Neutral0.0%
Negative21.4%

GSDSP Quantum Distortion

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

midiLFOs

No in-app purchases

None

GSDSP Quantum Distortion

No in-app purchases

Questions

Is midiLFOs free?
midiLFOs costs $4.99, with no in-app purchases.
Is GSDSP Quantum Distortion free?
GSDSP Quantum Distortion costs $14.99, with no in-app purchases.
Which has better reviews, midiLFOs or GSDSP Quantum Distortion?
GSDSP Quantum Distortion is rated higher. midiLFOs averages 4.9 out of 5 from 21 ratings, while GSDSP Quantum Distortion averages 5.0 from 10 ratings.
Do midiLFOs or GSDSP Quantum Distortion have ads?
Neither midiLFOs nor GSDSP Quantum Distortion shows ads.
Which is updated more often, midiLFOs or GSDSP Quantum Distortion?
midiLFOs ships an update every 3 months, and GSDSP Quantum Distortion every 5 weeks. Most recently, midiLFOs was updated on October 7, 2026 and GSDSP Quantum Distortion on October 9, 2026.

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