# MF vs GSDSP Quantum Delay

The clearest difference is rating: MF at 5.0 against GSDSP Quantum Delay's 4.8. On price, review sentiment, ratings volume and update cadence there is nothing between them.

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

MF holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 9 and 17 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

MF ships an update monthly, GSDSP Quantum Delay every 5 weeks. The most recent releases landed on August 12, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | MF | GSDSP Quantum Delay |
| --- | --- | --- |
| Price | $14.99 | $14.99 |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/mf-102s-ring-modulator/id6450608409/reviews)** | [4.8 (17 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297/reviews) |
| Number of ratings | 9 | **17** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Paid | Paid |
| Size | 42 MB | 94 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Moog Music Inc.](https://appshunter.io/developer/396776421) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### MF

[App page](https://appshunter.io/ios/app/mf-102s-ring-modulator/id6450608409)

This app meticulously recreates a classic analog effects pedal, offering a voltage-controlled ring modulator, carrier oscillator, and LFO. It's designed to process and modulate any audio input, providing a unique, retro-futuristic sound with organic parameter interaction for a musical playing experience.

**Highlights:** Ring Modulator, Voltage-controlled Carrier Oscillator, Voltage-controlled LFO, AUv3 effects plugin, Processes any audio input, Organic parameter interaction

**Features:** Vision Pro support

**In-app purchases:** none


### GSDSP Quantum Delay

[App page](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MF free?

MF costs $14.99, 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, MF or GSDSP Quantum Delay?

MF is rated higher. MF averages 5.0 out of 5 from 9 ratings, while GSDSP Quantum Delay averages 4.8 from 17 ratings.

### Do MF or GSDSP Quantum Delay have ads?

Neither MF nor GSDSP Quantum Delay shows ads.

### Which is updated more often, MF or GSDSP Quantum Delay?

MF ships an update monthly, and GSDSP Quantum Delay every 5 weeks. Most recently, MF was updated on August 12, 2026 and GSDSP Quantum Delay on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*