NoInputMixer vs GSDSP Quantum Delay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NoInputMixer
Explore experimental sound design by creating feedback loops with a virtual analog mixer and effects rack. Generate unique electronic textures, from unsettling soundscapes to glitchy elements, with extensive configuration options and presets.
- Virtual analog mixer modeling
- Feedback loop creation
- Extensive effects rack
- Algorithmic noise generators
- Adjustable signal path
- Hi-res/lo-fi processing options
- MIDI support
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No-Input Mixing is an experimental technique for creating a wide range of amazing, otherworldly electronic sounds by feeding the mixer output back to the input, thereby making a feedback loop. This application models an analog mixing console and effects rack in detail, providing the ability to make a huge number of feedback configurations with additional effects. By using this technique in the creative process, the sound designer can explore many different and special ways to create sound. Unsettling soundscapes perfect for sci-fi, dystopian and horror projects, like strange noises, disrupted signals, broken communication, buzzing drones, faulty machinery, futuristic tech sounds, and glitchy elements are some results of the No-Input Mixing technique. The downside of this technique, which can scare off beginners, is extreme unpredictability and instability, when the movement of any knob on the mixer can dramatically change the sound in the most unexpected way. But at the same time, this discover an endless space of experimentation and inspiration when creating new and unique sounds or live performance. In addition, a large set of ready-to-use drone and noise presets with a parameter randomizer provide a great point for quickly getting started with this application. NoInputMixer consists of a seven-channel mixer and an effects rack with eight slots. Each effect slot can be configured as an insert effect for a mixer channel or used with two send/return buses. Effects has an option for hi-res or lo-fi sound processing. Each mixer channel has its own algorithmic generator of different types of noise, which can be added to the feedback signal or used separately. The input selector switches between multiple points in the signal path to make different types of feedback loops or can be switched to an external input for any channel to use it as an effect processor. Also this application provides several additional options not found in usual mixers, such as preamp tube type and mode selection, op-amp type selection, adjustment of overload protection circuit, and other features that greatly expand the possibilities for experimenting with sound. The user interface can be presented in the form of a classic mixer, or in the form of complete control of a single channel. NoInputMixer is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). NoInputMixer works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, and supports Audiobus. On MacOS, NoInputMixer can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. All application features are available on iOS and macOS, including MIDI support (with a MIDI learn option) and audio unit parameters. NoInputMixer has a built-in detailed description of all parameters also available as PDF file on the application website. Quick start and demos: https://youtu.be/K7yh0-34Llw https://youtu.be/74LyfDM2dQM https://youtu.be/AeF3oBoXp80 https://youtu.be/95AM6OGoTdo You can find more information on NoInputMixer and other experimental audio processing apps at: https://motion-soundscape.blogspot.com
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.
- 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)
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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
Verdict
The clearest difference is update cadence: GSDSP Quantum Delay at every 5 weeks against NoInputMixer's every 5 months. GSDSP Quantum Delay also leads on price ($14.99 vs $15.99). On rating, review sentiment, ratings volume 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
NoInputMixer costs $15.99 and GSDSP Quantum Delay $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for NoInputMixer against 4.8 for GSDSP Quantum Delay. Both are backed by a comparable volume of ratings — 28 and 17 respectively. Written reviews are what separate them: 95% of NoInputMixer's written reviews are positive against 100% of GSDSP Quantum Delay's.
NoInputMixer ships an update every 5 months, GSDSP Quantum Delay every 5 weeks. The most recent releases landed on October 12, 2026 and September 22, 2026 respectively.
| Parameter | NoInputMixer | GSDSP Quantum Delay |
|---|---|---|
| Price | $15.99 | $14.99 — better |
| Rating | 4.8 (28 ratings) | 4.8 (17 ratings) |
| Positive reviews | 95.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 28 — better | 17 |
| Update frequency | Every 5 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Igor Vasiliev | Gustav Scholda |
Customer experience
NoInputMixer
GSDSP Quantum Delay
In-app purchases
NoInputMixer
No in-app purchases
GSDSP Quantum Delay
No in-app purchases








