# EG ModernFX AU3 Multi effects vs GSDSP Quantum Delay

The clearest difference is price: EG ModernFX AU3 Multi effects at $3.99 against GSDSP Quantum Delay's $14.99. EG ModernFX AU3 Multi effects also leads on update cadence (weekly vs every 6 weeks) and iOS requirement (8.0 vs 13.0). GSDSP Quantum Delay's advantage is ratings volume (17 vs 4). On rating, review sentiment, ads and in-app purchases there is nothing between them.

EG ModernFX AU3 Multi effects costs $3.99 and GSDSP Quantum Delay $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EG ModernFX AU3 Multi effects holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 17 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

EG ModernFX AU3 Multi effects ships an update weekly, GSDSP Quantum Delay every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | EG ModernFX AU3 Multi effects | GSDSP Quantum Delay |
| --- | --- | --- |
| Price | **$3.99** | $14.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/eg-modernfx-au3-multi-effects/id1573219512/reviews)** | [4.8 (17 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297/reviews) |
| Number of ratings | 4 | **17** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Paid | Paid |
| Size | 31 MB | 94 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Elliott Garage](https://appshunter.io/developer/454709866) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### EG ModernFX AU3 Multi effects

[App page](https://appshunter.io/ios/app/eg-modernfx-au3-multi-effects/id1573219512)

Enhance your audio tracks with a variety of modern multieffects. This app offers 8 distinct effects, each with adjustable parameters and the ability to be bypassed. It supports AU3 multi-output and MIDI CC automation for flexible integration into your digital audio workstation.

**Highlights:** 8 modern audio effects, Tweakable effects with bypass, AU3 multi-output support, MIDI CC automation, Multitouch effect modulation, Live mode for on-the-fly effects, Reorderable effect chain, Preset saving and randomization

**Features:** macOS Compatibility, 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 EG ModernFX AU3 Multi effects free?

EG ModernFX AU3 Multi effects costs $3.99, 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, EG ModernFX AU3 Multi effects or GSDSP Quantum Delay?

EG ModernFX AU3 Multi effects is rated higher. EG ModernFX AU3 Multi effects averages 5.0 out of 5 from 4 ratings, while GSDSP Quantum Delay averages 4.8 from 17 ratings.

### Do EG ModernFX AU3 Multi effects or GSDSP Quantum Delay have ads?

Neither EG ModernFX AU3 Multi effects nor GSDSP Quantum Delay shows ads.

### Which is updated more often, EG ModernFX AU3 Multi effects or GSDSP Quantum Delay?

EG ModernFX AU3 Multi effects ships an update weekly, and GSDSP Quantum Delay every 6 weeks. Most recently, EG ModernFX AU3 Multi effects was updated on November 3, 2026 and GSDSP Quantum Delay on November 3, 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.*