# GSDSP MagicDelay vs PolyrhythmLab

The clearest difference is price: PolyrhythmLab at $4.99 against GSDSP MagicDelay's $29.99. GSDSP MagicDelay's advantage is rating (4.7 vs 1.0) and review sentiment (25% vs 0%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

GSDSP MagicDelay costs $29.99 and PolyrhythmLab $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GSDSP MagicDelay holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: GSDSP MagicDelay has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of GSDSP MagicDelay's written reviews are positive against 0% of PolyrhythmLab's.

GSDSP MagicDelay ships an update every 5 weeks, PolyrhythmLab every 4 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | GSDSP MagicDelay | PolyrhythmLab |
| --- | --- | --- |
| Price | $29.99 | **$4.99** |
| Rating | **[4.7 (14 ratings)](https://appshunter.io/ios/app/gsdsp-magicdelay/id1642323015/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/polyrhythmlab/id6806714489/reviews) |
| Number of ratings | **14** | 1 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 weeks** |
| Monetization | Paid | Paid |
| Size | 72 MB | 401 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [Martin Adler](https://appshunter.io/developer/1896354791) |

## What reviewers say

### GSDSP MagicDelay

[App page](https://appshunter.io/ios/app/gsdsp-magicdelay/id1642323015)

This app offers a unique spectral delay effect with advanced control over thousands of parallel delays using a single curve. It allows for real-time modulation, tempo-syncing, and precise feedback management for expansive sonic exploration.

**Highlights:** Spectral delay with single curve control, Tempo-synced grids and free-flowing motion, Real-time curve modulation and morphing, dB/s feedback decay system, Built-in highpass and lowpass filters, Crossfeed for stereo image expansion, Feedback Over for values beyond 100%

**Features:** Vision Pro support

**In-app purchases:** none


### PolyrhythmLab

[App page](https://appshunter.io/ios/app/polyrhythmlab/id6806714489)

Create complex, evolving musical rhythms and dynamic visual performances. This app offers a unique polyrhythmic engine for sound layers and a live visual mixer with customizable effects and camera controls. Export audio, MIDI, or video of your creations.

**Highlights:** True polyrhythm engine with independent step/pulse counts per layer, AUv3 plugin support for DAWs like GarageBand and Logic, Live MIDI output for driving external synths, Integrated VJ mixer with audio-reactive visuals and effects, Song mode for arranging patterns into full tracks, Save and reload groovebox patterns and VJ setups as presets, Export audio, MIDI, and video recordings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP MagicDelay free?

GSDSP MagicDelay costs $29.99, with no in-app purchases.

### Is PolyrhythmLab free?

PolyrhythmLab costs $4.99, with no in-app purchases.

### Which has better reviews, GSDSP MagicDelay or PolyrhythmLab?

GSDSP MagicDelay is rated higher. GSDSP MagicDelay averages 4.7 out of 5 from 14 ratings, while PolyrhythmLab averages 1.0 from 1 ratings.

### Do GSDSP MagicDelay or PolyrhythmLab have ads?

Neither GSDSP MagicDelay nor PolyrhythmLab shows ads.

### Which is updated more often, GSDSP MagicDelay or PolyrhythmLab?

GSDSP MagicDelay ships an update every 5 weeks, and PolyrhythmLab every 4 weeks. Most recently, GSDSP MagicDelay was updated on November 3, 2026 and PolyrhythmLab on November 4, 2026.

---

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