# Stone Echo vs GSDSP MagicFusion

The clearest difference is review sentiment: GSDSP MagicFusion at 100% against Stone Echo's 50%. GSDSP MagicFusion also leads on rating (5.0 vs 2.8) and update cadence (every 6 weeks vs every 38 months). Stone Echo's advantage is price ($2.99 vs $29.99) and iOS requirement (10.0 vs 13.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Stone Echo costs $2.99 and GSDSP MagicFusion $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GSDSP MagicFusion holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 50% of Stone Echo's written reviews are positive against 100% of GSDSP MagicFusion's.

Stone Echo ships an update every 38 months, GSDSP MagicFusion every 6 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Stone Echo | GSDSP MagicFusion |
| --- | --- | --- |
| Price | **$2.99** | $29.99 |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/stone-echo/id1354390681/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/gsdsp-magicfusion/id6446889003/reviews)** |
| Number of ratings | 4 | 4 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Size | 9 MB | 69 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### Stone Echo

[App page](https://appshunter.io/ios/app/stone-echo/id1354390681)

This app creates a unique echo effect with adjustable frequency modulation, inspired by Mayan pyramid acoustics. It offers musical and experimental soundscapes, functioning as a standalone application or an AUV3 plugin.

**Highlights:** Frequency changing echo effect, Phase modulated frequency, Standalone app and AUV3 plugin, Adjustable time, feedback, and level, UFO mode for experimental sounds

**Features:** Vision Pro support

**In-app purchases:** none


### GSDSP MagicFusion

[App page](https://appshunter.io/ios/app/gsdsp-magicfusion/id6446889003)

This advanced audio effect plugin offers precise spectral fusion and multi-curve vocoding. It allows users to extract spectral characteristics from one audio source and apply them to another, enabling detailed transformations from subtle shading to extreme effects.

**Highlights:** Multi-curve spectral vocoding, Frequency-domain processing, Independent fusion amounts per frequency, Dynamic response control, Formant shifting, AUv3 audio effect plugin

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Stone Echo free?

Stone Echo costs $2.99, with no in-app purchases.

### Is GSDSP MagicFusion free?

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

### Which has better reviews, Stone Echo or GSDSP MagicFusion?

GSDSP MagicFusion is rated higher. Stone Echo averages 2.8 out of 5 from 4 ratings, while GSDSP MagicFusion averages 5.0 from 4 ratings.

### Do Stone Echo or GSDSP MagicFusion have ads?

Neither Stone Echo nor GSDSP MagicFusion shows ads.

### Which is updated more often, Stone Echo or GSDSP MagicFusion?

Stone Echo ships an update every 38 months, and GSDSP MagicFusion every 6 weeks. Most recently, Stone Echo was updated on November 11, 2026 and GSDSP MagicFusion 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.*