# MusicKanHeal vs Number System Trainer

The clearest difference is in-app purchases: Number System Trainer at none against MusicKanHeal's 4. Number System Trainer also leads on update cadence (weekly vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MusicKanHeal sells 4 in-app purchases, starting at $9.99 per month. Number System Trainer asks for nothing beyond the download.

MusicKanHeal ships an update every 6 weeks, Number System Trainer weekly. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MusicKanHeal | Number System Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (12 ratings)](https://appshunter.io/ios/app/number-system-trainer/id6786437503/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 217 MB | 10 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Keith Norris](https://appshunter.io/developer/1775197681) | [Brandon Oaks](https://appshunter.io/developer/6786437505) |

## What reviewers say

### MusicKanHeal

[App page](https://appshunter.io/ios/app/musickanheal/id6737196643)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $9.99 | per month |
| Intermidiate | $17.99 | per month |
| Professional | $29.99 | per month |
| Yearly Pro Subscription | $249.99 | per year |


### Number System Trainer

[App page](https://appshunter.io/ios/app/number-system-trainer/id6786437503)

Learn and master the Nashville Number System for music. This app offers interactive modules to help musicians of all levels understand chord progressions, transpose songs, and improve their ear training. It's designed for quick learning and on-the-fly musical communication.

**Highlights:** Interactive learning modules, Chord reading and identification, Instant transposition, Ear training exercises, Visual chord shapes, Circle of 4ths & 5ths reference

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is MusicKanHeal free?

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

### Is Number System Trainer free?

Number System Trainer is free to download, with no in-app purchases.

### Do MusicKanHeal or Number System Trainer have ads?

Neither MusicKanHeal nor Number System Trainer shows ads.

### Which is updated more often, MusicKanHeal or Number System Trainer?

MusicKanHeal ships an update every 6 weeks, and Number System Trainer weekly. Most recently, MusicKanHeal was updated on October 13, 2026 and Number System Trainer on October 24, 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.*