# Fretronome vs GSDSP Quantum Granulator

The clearest difference is price: Fretronome at $0.99 against GSDSP Quantum Granulator's $14.99. GSDSP Quantum Granulator's advantage is rating (5.0 vs 3.7) and review sentiment (100% vs 63%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Fretronome costs $0.99 and GSDSP Quantum Granulator $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GSDSP Quantum Granulator holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 7 respectively. Written reviews point the same way: 63% of Fretronome's written reviews are positive against 100% of GSDSP Quantum Granulator's.

Fretronome ships an update every 19 months, GSDSP Quantum Granulator every 6 weeks. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Fretronome | GSDSP Quantum Granulator |
| --- | --- | --- |
| Price | **$0.99** | $14.99 |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/fretronome/id412725768/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-granulator/id6741062705/reviews)** |
| Number of ratings | 3 | **7** |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Size | 7 MB | 61 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Neueinteraktion Design und Systeme GmbH](https://appshunter.io/developer/1438549997) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### Fretronome

[App page](https://appshunter.io/ios/app/fretronome/id412725768)

This app helps guitarists learn fretboard notes and intervals. It visually displays notes and intervals on a fretboard and includes a quiz mode to test knowledge. Support for left-handed players is also available.

**Highlights:** Fretboard note and interval learning, Visual note/interval display, Quiz mode for skill testing, Left-handed guitarist support

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Fretronome free?

Fretronome costs $0.99, with no in-app purchases.

### Is GSDSP Quantum Granulator free?

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

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

GSDSP Quantum Granulator is rated higher. Fretronome averages 3.7 out of 5 from 3 ratings, while GSDSP Quantum Granulator averages 5.0 from 7 ratings.

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

Neither Fretronome nor GSDSP Quantum Granulator shows ads.

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

Fretronome ships an update every 19 months, and GSDSP Quantum Granulator every 6 weeks. Most recently, Fretronome was updated on October 23, 2026 and GSDSP Quantum Granulator on October 28, 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.*