# Guitar Codex vs Harmonauta

The clearest difference is in-app purchases: Harmonauta at none against Guitar Codex's 3. Harmonauta also leads on update cadence (every 4 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Guitar Codex sells 3 one-off in-app purchases. Harmonauta asks for nothing beyond the download.

Guitar Codex ships an update weekly, Harmonauta every 4 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Guitar Codex | Harmonauta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/guitar-codex/id6800162755/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 3 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CampCheck Interactive LLC](https://appshunter.io/developer/6800162757) | [Evandro Guedes Machado](https://appshunter.io/developer/1882816684) |

## What reviewers say

### Guitar Codex

[App page](https://appshunter.io/ios/app/guitar-codex/id6800162755)

This app offers a comprehensive suite of tools for guitarists of all levels, from beginners to experienced players. It includes a tuner, metronome, interactive chord and scale libraries, and a structured 140-lesson course covering theory, technique, and songwriting.

**Highlights:** Chromatic tuner with multiple presets, Metronome with tap tempo, Interactive circle of fifths, Extensive chord and scale libraries, 140 structured lessons, Fretboard diagrams with color-coded notes

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Guitar Codex Pro | $9.99 | one-time |
| Pro to Complete Upgrade | $9.99 | one-time |
| Guitar Codex Complete | $19.99 | one-time |


### Harmonauta

[App page](https://appshunter.io/ios/app/harmonauta-music-maker/id6809853292)

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

**In-app purchases:** none


## Frequently asked questions

### Is Guitar Codex free?

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

### Is Harmonauta free?

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

### Do Guitar Codex or Harmonauta have ads?

Neither Guitar Codex nor Harmonauta shows ads.

### Which is updated more often, Guitar Codex or Harmonauta?

Guitar Codex ships an update weekly, and Harmonauta every 4 days. Most recently, Guitar Codex was updated on October 29, 2026 and Harmonauta 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.*