# MIDIx vs Grainsmith Field

The clearest difference is update cadence: Grainsmith Field at every 3 days against MIDIx's every 8 days. Grainsmith Field also leads on chart position (#175 vs unranked). MIDIx's advantage is price ($8.99 vs $11.99) and device support (4 vs 2). On rating, review sentiment, ratings volume and ads there is nothing between them.

MIDIx costs $8.99 and Grainsmith Field $11.99 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 MIDIx against 5.0 for Grainsmith Field. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

MIDIx ships an update every 8 days, Grainsmith Field every 3 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | MIDIx | Grainsmith Field |
| --- | --- | --- |
| Price | **$8.99** | $11.99 |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/midix-physics-midi-generator/id6758278999/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/grainsmith-field/id6760624826/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 3 days** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#175** |
| Size | 17 MB | 81 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fingerlab](https://appshunter.io/developer/412786610) | [Plastic Factory LLC](https://appshunter.io/developer/1017920807) |

## What reviewers say

### MIDIx

[App page](https://appshunter.io/ios/app/midix-physics-midi-generator/id6758278999)

This app uses physics simulations to generate expressive MIDI data. Control parameters through object movement or create generative note sequences. It's a unique tool for musicians seeking organic and evolving soundscapes.

**Highlights:** Physics-driven MIDI CC generation, Generative MIDI note sequencing, AUv3 plugin support, Customizable physics scenes, Built-in scale library, Real-time modulation, Universal app for iOS and Mac

**Features:** Vision Pro support

**In-app purchases:** none


### Grainsmith Field

[App page](https://appshunter.io/ios/app/grainsmith-field/id6760624826)

**Currently charting:** #175 Top Paid · Music (US App Store)

Transform any sound into unique sonic textures using a powerful granular synthesizer. Manipulate audio with multiple playheads, record live input, and play it like an instrument via MIDI. Optimized for mobile, it offers extensive control and export options.

**Highlights:** Granular synthesis engine, Multiple independent playheads, Live audio recording and manipulation, MIDI instrument mode, AUv3 music effect, Performance recording with Live Activity, Built-in reverb and filter

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

**In-app purchases:** none


## Frequently asked questions

### Is MIDIx free?

MIDIx costs $8.99, with no in-app purchases.

### Is Grainsmith Field free?

Grainsmith Field costs $11.99, with no in-app purchases.

### Which has better reviews, MIDIx or Grainsmith Field?

MIDIx and Grainsmith Field are both rated 5.0 out of 5 on the App Store, from 3 and 5 ratings respectively.

### Do MIDIx or Grainsmith Field have ads?

Neither MIDIx nor Grainsmith Field shows ads.

### Which is updated more often, MIDIx or Grainsmith Field?

MIDIx ships an update every 8 days, and Grainsmith Field every 3 days. Most recently, MIDIx was updated on November 5, 2026 and Grainsmith Field on November 5, 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.*