# MIDIKeys vs Scale Numbers Piano

The clearest difference is rating: Scale Numbers Piano at 4.2 against MIDIKeys's 3.4. Scale Numbers Piano also leads on update cadence (fortnightly vs every 6 weeks). MIDIKeys's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 17.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Scale Numbers Piano sells 1 one-off in-app purchase. MIDIKeys asks for nothing beyond the download.

Scale Numbers Piano holds the better App Store score, 4.2 against 3.4. Both are backed by a comparable volume of ratings — 16 and 12 respectively. Written reviews complicate that: 70% of MIDIKeys's written reviews are positive against 65% of Scale Numbers Piano's, so the app with the better star average is not the one people write more warmly about.

MIDIKeys ships an update every 6 weeks, Scale Numbers Piano fortnightly. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | MIDIKeys | Scale Numbers Piano |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (16 ratings)](https://appshunter.io/ios/app/midikeys-midi-controller/id363609665/reviews) | **[4.2 (12 ratings)](https://appshunter.io/ios/app/scale-numbers-piano/id1270369797/reviews)** |
| Number of ratings | **16** | 12 |
| Positive reviews | **70.0% of reviews** | 65.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 340 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Eskin](https://appshunter.io/developer/342739369) | [Scale Degrees LTD](https://appshunter.io/developer/1255001566) |

## What reviewers say

### MIDIKeys

[App page](https://appshunter.io/ios/app/midikeys-midi-controller/id363609665)

This app acts as a virtual MIDI keyboard controller, allowing you to send MIDI messages to synthesizer apps and hardware. It offers customizable velocity, octave transposition, and tilt controls for expression.

**Highlights:** Virtual MIDI keyboard, Send MIDI messages, Octave transposition, Adjustable velocity, Tilt expression control, Customizable MIDI channel

**Features:** Vision Pro support

**In-app purchases:** none


### Scale Numbers Piano

[App page](https://appshunter.io/ios/app/scale-numbers-piano/id1270369797)

Compose melodies and chords simultaneously on your device. Record and loop your creations for improvisation and songwriting. Learn music theory and play popular songs with a unique scale number system, no prior knowledge needed.

**Highlights:** Play melody and chords together, Record and live loop compositions, Theory lessons and songbook, Scale number system for easy learning, Built-in sampler instruments, MIDI input for DAWs

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


## Frequently asked questions

### Is MIDIKeys free?

MIDIKeys is free to download, with no in-app purchases.

### Is Scale Numbers Piano free?

Scale Numbers Piano is free to download, with in-app purchases available.

### Which has better reviews, MIDIKeys or Scale Numbers Piano?

Scale Numbers Piano is rated higher. MIDIKeys averages 3.4 out of 5 from 16 ratings, while Scale Numbers Piano averages 4.2 from 12 ratings.

### Do MIDIKeys or Scale Numbers Piano have ads?

Neither MIDIKeys nor Scale Numbers Piano shows ads.

### Which is updated more often, MIDIKeys or Scale Numbers Piano?

MIDIKeys ships an update every 6 weeks, and Scale Numbers Piano fortnightly. Most recently, MIDIKeys was updated on October 21, 2026 and Scale Numbers Piano on October 13, 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.*