# Tonality Visualizer vs Music Training 99

The clearest difference is in-app purchases: Tonality Visualizer at none against Music Training 99's 1. Music Training 99's advantage is update cadence (every 6 days vs fortnightly) and iOS requirement (16.6 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Music Training 99 sells 1 one-off in-app purchase. Tonality Visualizer asks for nothing beyond the download.

Tonality Visualizer ships an update fortnightly, Music Training 99 every 6 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Tonality Visualizer | Music Training 99 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Size | 39 MB | 6 MB |
| Requires iOS | 18.6 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yusuke Yoshida](https://appshunter.io/developer/1846366607) | [Kunio Arai](https://appshunter.io/developer/395073615) |

## What reviewers say

### Tonality Visualizer

[App page](https://appshunter.io/ios/app/tonality-visualizer/id6754036478)

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

**In-app purchases:** none


### Music Training 99

[App page](https://appshunter.io/ios/app/music-training-99/id6795477948)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Music Training 99 Full Version | $1.99 | one-time |


## Frequently asked questions

### Is Tonality Visualizer free?

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

### Is Music Training 99 free?

Music Training 99 is free to download, with in-app purchases available.

### Do Tonality Visualizer or Music Training 99 have ads?

Neither Tonality Visualizer nor Music Training 99 shows ads.

### Which is updated more often, Tonality Visualizer or Music Training 99?

Tonality Visualizer ships an update fortnightly, and Music Training 99 every 6 days. Most recently, Tonality Visualizer was updated on November 9, 2026 and Music Training 99 on November 6, 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.*