# MIDI Designer Pro X vs Skym

The clearest difference is price: MIDI Designer Pro X at Free against Skym's $7.99. MIDI Designer Pro X also leads on update cadence (every 5 days vs monthly) and rating (4.6 vs 4.3). Skym's advantage is iOS requirement (15.0 vs 18.6). On review sentiment, ads, in-app purchases and device support there is nothing between them.

MIDI Designer Pro X is free to download; Skym costs $7.99 up front. MIDI Designer Pro X sells 14 in-app purchases, starting at $1.49 per month and Skym sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

MIDI Designer Pro X holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: MIDI Designer Pro X has 271 ratings behind it against 22, so its average is the more settled of the two. Written reviews complicate that: 79% of MIDI Designer Pro X's written reviews are positive against 80% of Skym's, so the app with the better star average is not the one people write more warmly about.

MIDI Designer Pro X ships an update every 5 days, Skym monthly. Both last shipped on October 29, 2026.

## The numbers

| Metric | MIDI Designer Pro X | Skym |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[4.6 (271 ratings)](https://appshunter.io/ios/app/midi-designer-pro-x/id492291712/reviews)** | [4.3 (22 ratings)](https://appshunter.io/ios/app/skym/id1546169685/reviews) |
| Number of ratings | **271** | 22 |
| Positive reviews | 78.8% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | **Freemium** | Paid |
| Size | 209 MB | 34 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Confusion Studios LLC](https://appshunter.io/developer/492291715) | [ResGuide LLC](https://appshunter.io/developer/1501968996) |

## What reviewers say

### MIDI Designer Pro X

[App page](https://appshunter.io/ios/app/midi-designer-pro-x/id492291712)

Create custom MIDI controllers for any MIDI-enabled hardware or software. Offers extensive customization, a large user-created layout library, and robust MIDI communication. Ideal for musicians and producers seeking a personalized control experience.

**Highlights:** Control any MIDI-enabled device, Network, Bluetooth, and USB MIDI, Extensive user layout library, Customizable control surfaces, Advanced MIDI transformation features, Ableton Link integration

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MDPx Premium iPhone Only | $1.49 | per month |
| MDPx Premium iPad Only | $2.49 | per month |
| MDPx Premium iPad, iPhone | $2.99 | per month |
| MDPx Premium Mac Only | $4.49 | per month |
| MDPx Premium Mac, iPad, iPhone | $4.99 | per month |
| MDPx Premium iPhone Only | $14.99 | per year |
| MDPx Premium iPad Only | $24.99 | per year |
| MDPx Premium iPad, iPhone | $29.99 | per year |
| MDPx Premium Mac Only | $44.99 | per year |
| MDPx Premium Mac, iPad, iPhone | $49.99 | per year |
| Extra Features Pack | $4.99 | one-time |
| Automatic Backups | $4.99 | one-time |
| Audeonic Stream Byter Plugin | $4.99 | one-time |
| MDPx Premium Lifetime | $124.99 | one-time |


### Skym

[App page](https://appshunter.io/ios/app/skym/id1546169685)

Control your Ableton devices with expressive touch gestures. This MIDI controller app lets you manipulate four parameters simultaneously, offering instant variability and interest to your sounds. It requires Ableton on macOS and does not generate sound on its own.

**Highlights:** Touch control for Ableton devices, Control 4 parameters simultaneously, X, Y, Speed, and Gate parameters, USB or Bluetooth connection, Free starter Ableton project included, Expressive sound design

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Heat Map | $4.99 | one-time |
| Warp Speed | $9.99 | one-time |
| Pulse Cell | $9.99 | one-time |
| Life Flower | $9.99 | one-time |


## Frequently asked questions

### Is MIDI Designer Pro X free?

MIDI Designer Pro X is free to download, with in-app purchases available.

### Is Skym free?

Skym costs $7.99, and also offers in-app purchases.

### Which has better reviews, MIDI Designer Pro X or Skym?

MIDI Designer Pro X is rated higher. MIDI Designer Pro X averages 4.6 out of 5 from 271 ratings, while Skym averages 4.3 from 22 ratings.

### Do MIDI Designer Pro X or Skym have ads?

Neither MIDI Designer Pro X nor Skym shows ads.

### Which is updated more often, MIDI Designer Pro X or Skym?

MIDI Designer Pro X ships an update every 5 days, and Skym monthly. Most recently, MIDI Designer Pro X was updated on October 29, 2026 and Skym on October 29, 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.*