# M2DX vs MIDI Shimmer

The clearest difference is price: M2DX at Free against MIDI Shimmer's $1.99. M2DX also leads on update cadence (every 2 days vs every 5 days). MIDI Shimmer's advantage is in-app purchases (none vs 1) and iOS requirement (16.0 vs 18.0). On ads and device support there is nothing between them.

M2DX is free to download; MIDI Shimmer costs $1.99 up front. M2DX sells 1 one-off in-app purchase. MIDI Shimmer asks for nothing beyond the download.

M2DX ships an update every 2 days, MIDI Shimmer every 5 days. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | M2DX | MIDI Shimmer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/m2dx/id6763840208/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | Free | — |
| Size | 16 MB | 336 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Hakaru Hirose](https://appshunter.io/developer/1866507020) | [Heinrich Krupp](https://appshunter.io/developer/1866842398) |

## What reviewers say

### M2DX

[App page](https://appshunter.io/ios/app/m2dx/id6763840208)

Create music with a powerful 6-operator FM synthesizer. Explore hand-crafted presets or import classic DX7 banks. Use the on-screen keyboard or connect MIDI controllers for a versatile music-making experience.

**Highlights:** 6-operator, 32-algorithm FM synthesis, On-screen keyboard with velocity control, DX7-format .syx bank import, 6-stage FX chain, AUv3 plug-in support, Native MIDI 2.0 support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| M2DX Pro Unlock | $9.99 | one-time |


### MIDI Shimmer

[App page](https://appshunter.io/ios/app/midi-shimmer/id6783504776)

**In-app purchases:** none


## Frequently asked questions

### Is M2DX free?

M2DX is free to download, with in-app purchases available.

### Is MIDI Shimmer free?

MIDI Shimmer costs $1.99, with no in-app purchases.

### Do M2DX or MIDI Shimmer have ads?

Neither M2DX nor MIDI Shimmer shows ads.

### Which is updated more often, M2DX or MIDI Shimmer?

M2DX ships an update every 2 days, and MIDI Shimmer every 5 days. Most recently, M2DX was updated on October 8, 2026 and MIDI Shimmer 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.*