# Phosphor 3 vs GSDSP MagicDelay

Phosphor 3 and GSDSP MagicDelay both sit at 4.7 stars, but that hides the real split: 79% of Phosphor 3's written reviews are positive against 25% of GSDSP MagicDelay's. Phosphor 3 also leads on price ($5.99 vs $29.99). GSDSP MagicDelay's advantage is update cadence (every 5 weeks vs every 11 months) and device support (3 vs 1). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Phosphor 3 costs $5.99 and GSDSP MagicDelay $29.99 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 — 4.7 for Phosphor 3 against 4.7 for GSDSP MagicDelay. Both are backed by a comparable volume of ratings — 9 and 14 respectively. Written reviews are what separate them: 79% of Phosphor 3's written reviews are positive against 25% of GSDSP MagicDelay's.

Phosphor 3 ships an update every 11 months, GSDSP MagicDelay every 5 weeks. The most recent releases landed on July 6, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Phosphor 3 | GSDSP MagicDelay |
| --- | --- | --- |
| Price | **$5.99** | $29.99 |
| Rating | [4.7 (9 ratings)](https://appshunter.io/ios/app/phosphor-3/id1499115553/reviews) | **[4.7 (14 ratings)](https://appshunter.io/ios/app/gsdsp-magicdelay/id1642323015/reviews)** |
| Number of ratings | 9 | **14** |
| Positive reviews | **78.6% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 27 MB | 72 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### Phosphor 3

[App page](https://appshunter.io/ios/app/phosphor-3/id1499115553)

This app recreates a vintage digital synthesizer, offering a faithful emulation of a classic sound engine. It includes modern features like MPE, extensive modulation, and a new UI for sonic exploration.

**Highlights:** Vintage digital synthesizer emulation, Additive synthesis engine, MPE support, Extensive modulation routing, Preset manager, Tuning tables

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Phosphor 3 free?

Phosphor 3 costs $5.99, with no in-app purchases.

### Is GSDSP MagicDelay free?

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

### Which has better reviews, Phosphor 3 or GSDSP MagicDelay?

GSDSP MagicDelay is rated higher. Phosphor 3 averages 4.7 out of 5 from 9 ratings, while GSDSP MagicDelay averages 4.7 from 14 ratings.

### Do Phosphor 3 or GSDSP MagicDelay have ads?

Neither Phosphor 3 nor GSDSP MagicDelay shows ads.

### Which is updated more often, Phosphor 3 or GSDSP MagicDelay?

Phosphor 3 ships an update every 11 months, and GSDSP MagicDelay every 5 weeks. Most recently, Phosphor 3 was updated on July 6, 2026 and GSDSP MagicDelay 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.*