# GSDSP Quantum Granulator vs variStretch

The clearest difference is price: variStretch at $5.99 against GSDSP Quantum Granulator's $14.99. GSDSP Quantum Granulator's advantage is update cadence (every 6 weeks vs every 7 months) and ratings volume (7 vs 1). On rating, ads, in-app purchases and monetization model there is nothing between them.

GSDSP Quantum Granulator costs $14.99 and variStretch $5.99 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 — 5.0 for GSDSP Quantum Granulator against 5.0 for variStretch. That said, the two scores are not equally well evidenced: GSDSP Quantum Granulator has 7 ratings behind it against 1, so its average is the more settled of the two.

GSDSP Quantum Granulator ships an update every 6 weeks, variStretch every 7 months. The most recent releases landed on October 28, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | GSDSP Quantum Granulator | variStretch |
| --- | --- | --- |
| Price | $14.99 | **$5.99** |
| Rating | [5.0 (7 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-granulator/id6741062705/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/varistretch/id6744925479/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 7 months |
| Monetization | Paid | Paid |
| Size | 61 MB | 15 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [Satoshi Kajii](https://appshunter.io/developer/1777441634) |

## What reviewers say

### GSDSP Quantum Granulator

[App page](https://appshunter.io/ios/app/gsdsp-quantum-granulator/id6741062705)

This live granular processor allows you to break down audio into small pieces or create atmospheric soundscapes. It features dual live buffers, a musical grain engine with tempo sync, and expressive pitch control with MIDI support. Shape your sound with an intuitive XY pad and mix section for detailed sonic manipulation.

**Highlights:** Dual live recording buffers, Tempo-synced grain triggering, Expressive pitch control with scales, 2D XY pad for grain shaping, MIDI playable granular instrument, AUv3 audio effect plugin

**Features:** Vision Pro support

**In-app purchases:** none


### variStretch

[App page](https://appshunter.io/ios/app/varistretch/id6744925479)

This app allows real-time audio speed manipulation without altering pitch. It offers three distinct playback modes and adjustable buffer settings for precise control over sound processing.

**Highlights:** Real-time speed adjustment (0.5-2.0x), Tape mode (speed & pitch change), Phase Vocoder mode (speed only), Adjustable buffer size, Buffer clear function, AUv3 host compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP Quantum Granulator free?

GSDSP Quantum Granulator costs $14.99, with no in-app purchases.

### Is variStretch free?

variStretch costs $5.99, with no in-app purchases.

### Which has better reviews, GSDSP Quantum Granulator or variStretch?

GSDSP Quantum Granulator and variStretch are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.

### Do GSDSP Quantum Granulator or variStretch have ads?

Neither GSDSP Quantum Granulator nor variStretch shows ads.

### Which is updated more often, GSDSP Quantum Granulator or variStretch?

GSDSP Quantum Granulator ships an update every 6 weeks, and variStretch every 7 months. Most recently, GSDSP Quantum Granulator was updated on October 28, 2026 and variStretch on October 18, 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.*