# Isotope MIDI Keyboard vs MeloDraw

The clearest difference is price: MeloDraw at Free against Isotope MIDI Keyboard's $6.99. MeloDraw also leads on update cadence (daily vs every 2 days). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

MeloDraw is free to download; Isotope MIDI Keyboard costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Isotope MIDI Keyboard ships an update every 2 days, MeloDraw daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Isotope MIDI Keyboard | MeloDraw |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[4.9 (10 ratings)](https://appshunter.io/ios/app/isotope-midi-keyboard/id1667140170/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Monetization | Paid | — |
| Size | 3 MB | 33 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jaewon Choi](https://appshunter.io/developer/1324431041) | [Kangsoo Lee](https://appshunter.io/developer/6792187263) |

## What reviewers say

### Isotope MIDI Keyboard

[App page](https://appshunter.io/ios/app/isotope-midi-keyboard/id1667140170)

This app offers an intuitive and accessible way to play music and learn music theory. Its unique isomorphic grid layout simplifies chord playing and understanding note relationships, making it ideal for both beginners and experienced musicians.

**Highlights:** Isomorphic grid layout for intuitive playing, Built-in Element sound engine, Audio Unit v3 plugin support, MIDI and MIDI over Bluetooth connectivity, Velocity-based touch and accelerometer input, Customizable themes and layouts

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

**In-app purchases:** none


### MeloDraw

[App page](https://appshunter.io/ios/app/melodraw/id6801270293)

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

**In-app purchases:** none


## Frequently asked questions

### Is Isotope MIDI Keyboard free?

Isotope MIDI Keyboard costs $6.99, with no in-app purchases.

### Is MeloDraw free?

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

### Do Isotope MIDI Keyboard or MeloDraw have ads?

Neither Isotope MIDI Keyboard nor MeloDraw shows ads.

### Which is updated more often, Isotope MIDI Keyboard or MeloDraw?

Isotope MIDI Keyboard ships an update every 2 days, and MeloDraw daily. Most recently, Isotope MIDI Keyboard was updated on November 3, 2026 and MeloDraw on October 31, 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.*