# Tonality Visualizer vs Capo Key Transposer

The clearest difference is in-app purchases: Tonality Visualizer at none against Capo Key Transposer's 2. Tonality Visualizer also leads on update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Capo Key Transposer sells 2 in-app purchases, starting at $9.99 per 7 days. Tonality Visualizer asks for nothing beyond the download.

Tonality Visualizer ships an update fortnightly, Capo Key Transposer every 2 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | Tonality Visualizer | Capo Key Transposer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/capo-key-transposer/id6771942514/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 39 MB | 4 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yusuke Yoshida](https://appshunter.io/developer/1846366607) | [Linh Phan Nhat Khanh](https://appshunter.io/developer/1777727575) |

## 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


### Capo Key Transposer

[App page](https://appshunter.io/ios/app/capo-key-transposer/id6771942514)

Easily transpose songs to different keys by indicating the correct capo placement. Learn new chord shapes and manage your songbook offline. Ideal for singers, guitarists, and songwriters.

**Highlights:** Instant capo fret calculation, Open chord diagrams for common shapes, Support for 24 major and minor keys, Save and sort songs in a digital songbook, Offline functionality, Includes five starter songs

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Capo Key Transposer Weekly | $9.99 | per 7 days |
| Capo Key Transposer Yearly | $49.99 | per year |


## Frequently asked questions

### Is Tonality Visualizer free?

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

### Is Capo Key Transposer free?

Capo Key Transposer is free to download, with in-app purchases available.

### Do Tonality Visualizer or Capo Key Transposer have ads?

Neither Tonality Visualizer nor Capo Key Transposer shows ads.

### Which is updated more often, Tonality Visualizer or Capo Key Transposer?

Tonality Visualizer ships an update fortnightly, and Capo Key Transposer every 2 months. Most recently, Tonality Visualizer was updated on October 7, 2026 and Capo Key Transposer on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*