Comparison

PixelWave vs GSDSP Quantum Delay

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

Head to head
About

PixelWave

Create unique sounds with an experimental wavetable synthesizer featuring a retro pixel interface. Draw custom waveforms, choose from presets, and adjust octaves. Export your creations and integrate with other music apps.

Highlights
  • Draw custom waveforms
  • Export to WAV
  • Nine predefined waveforms
  • Changeable octaves (2-6)
  • MIDI keyboard support
  • Audiobus and IAA support
Features
Read full description

PixelWave is an experimental wavetable synth with old school pixel interface. Key features: • it is possible to draw waveform and play it at the same time; • export to WAV; • nine predefined waveforms; • changeable number of octaves (from 2 to 6); • MIDI keyboard support; • Audiobus and IAA support.

About

GSDSP Quantum Delay

This app offers a vintage-inspired stereo delay effect with advanced modulation, flexible filtering, and precise timing controls. It allows users to sculpt unique echo textures, from warm analog sounds to complex, evolving soundscapes.

Highlights
  • Vintage-inspired stereo delay
  • Deep modulation system
  • Flexible filtering (LPF, HPF, BPF)
  • Precise timing controls (BPM, ms)
  • Switchable stereo/dual mono modes
  • Advanced modulation sources (LFO, Random, Envelope)
Features
Read full description

A vintage-inspired delay supercharged with deep modulation, flexible filtering, and creative timing that pushes echoes into new dimensions. Classic Delay, Reinvented Quantum Delay takes the charm of a vintage stereo delay and fuses it with our next-level modulation system. Switch between the warm character of Tape mode and the pristine clarity of Fade mode, lock to BPM (including 5-tuplets) or dial in precise times in milliseconds. Use the Fine control for subtle push-and-pull micro-timing — or modulate your delay lines in ways traditional delays could only dream of. Sculpted Echoes Shape your repeats with switchable lowpass, highpass, and bandpass filters placed directly in the feedback path. Add modulation to create evolving tones, gentle movement, or drifting, frequency-shifting echoes. From warm analog-style rolls to shimmering, swirling textures, it’s all there. Feedback with Precision Control your delay tail behavior using either traditional % feedback or our modern dB-per-second decay system — ideal for predictable, musical decay even when the feedback path becomes complex. Enable Crossfeed for classic ping-pong stereo bounce, or push into Over-Feedback to create dense, self-building echoes that drift toward infinity. Stereo or Dual Mono Every section of Quantum Delay — delay, filter, and feedback — can switch between stereo and dual mono modes. Create tight, controlled stereo images or break them apart for wide, offset, unpredictable spaces. Dual mono modulation unlocks complex stereo interplay and beautifully asymmetric echoes. Modulation Without Limits Quantum Delay integrates our advanced modulation system, letting you modulate nearly anything: delay time, filters, feedback parameters, stereo controls, and more. Use LFOs, Random Generators, 2D modulators, Envelope Followers, Macros, and even chaotic systems to push your echoes far beyond traditional delay behavior. Or use our parameter randomisation feature to explore the plugin’s sound at random. Quantum Delay 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

PixelWave1 screens
GSDSP Quantum Delay3 screens

Verdict

The call

The clearest difference is price: PixelWave at $0.99 against GSDSP Quantum Delay's $14.99. GSDSP Quantum Delay's advantage is update cadence (every 5 weeks vs every 4 months) and review sentiment (100% vs 89%). 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

PixelWave costs $0.99 and GSDSP Quantum Delay $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 — 4.8 for PixelWave against 4.8 for GSDSP Quantum Delay. Both are backed by a comparable volume of ratings — 19 and 17 respectively. Written reviews are what separate them: 89% of PixelWave's written reviews are positive against 100% of GSDSP Quantum Delay's.

UpkeepUpdate frequency

PixelWave ships an update every 4 months, GSDSP Quantum Delay every 5 weeks. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
PixelWave versus GSDSP Quantum Delay: the parameters behind the verdict, then further details
ParameterPixelWaveGSDSP Quantum Delay
Price$0.99 — better$14.99
Rating4.8 (19 ratings)4.8 (17 ratings)
Positive reviews89.3% of reviews100.0% of reviews — better
Number of ratings19 — better17
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size2 MB94 MB
Age rating4+4+
DeveloperAlexander ZolotovGustav Scholda

Customer experience

PixelWave

All ratings19 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews56 reviews
Positive89.3%
Neutral5.4%
Negative5.4%

GSDSP Quantum Delay

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PixelWave

No in-app purchases

None

GSDSP Quantum Delay

No in-app purchases

Questions

Is PixelWave free?
PixelWave costs $0.99, with no in-app purchases.
Is GSDSP Quantum Delay free?
GSDSP Quantum Delay costs $14.99, with no in-app purchases.
Which has better reviews, PixelWave or GSDSP Quantum Delay?
PixelWave and GSDSP Quantum Delay are both rated 4.8 out of 5 on the App Store, from 19 and 17 ratings respectively.
Do PixelWave or GSDSP Quantum Delay have ads?
Neither PixelWave nor GSDSP Quantum Delay shows ads.
Which is updated more often, PixelWave or GSDSP Quantum Delay?
PixelWave ships an update every 4 months, and GSDSP Quantum Delay every 5 weeks. Most recently, PixelWave was updated on September 23, 2026 and GSDSP Quantum Delay on September 22, 2026.

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