# BlueScalesTrainer vs Guitar Codex

The clearest difference is review sentiment: Guitar Codex at 100% against BlueScalesTrainer's 50%. Guitar Codex also leads on price (Free vs $2.99) and rating (5.0 vs 4.0). BlueScalesTrainer's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.1). On ads and device support there is nothing between them.

Guitar Codex is free to download; BlueScalesTrainer costs $2.99 up front. Guitar Codex sells 3 one-off in-app purchases. BlueScalesTrainer asks for nothing beyond the download.

Guitar Codex holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 50% of BlueScalesTrainer's written reviews are positive against 100% of Guitar Codex's.

BlueScalesTrainer ships an update every 5 months, Guitar Codex every 2 days. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | BlueScalesTrainer | Guitar Codex |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/bluescalestrainer/id1455877520/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/guitar-codex/id6800162755/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 39 MB | 39 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Arnhold](https://appshunter.io/developer/432185706) | [CampCheck Interactive LLC](https://appshunter.io/developer/6800162757) |

## What reviewers say

### BlueScalesTrainer

[App page](https://appshunter.io/ios/app/bluescalestrainer/id1455877520)

Learn guitar scales with your own songs. Analyze music to find keys and display matching scales. Practice with visual fretboard views, adjustable speed, and effects. Supports foot pedal control and integrates with your iTunes library.

**Highlights:** Song key analysis, Visual scale patterns, Fretboard note display, Adjustable playback speed and pitch, Built-in audio effects, Foot pedal control support, Playlist management

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is BlueScalesTrainer free?

BlueScalesTrainer costs $2.99, with no in-app purchases.

### Is Guitar Codex free?

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

### Which has better reviews, BlueScalesTrainer or Guitar Codex?

Guitar Codex is rated higher. BlueScalesTrainer averages 4.0 out of 5 from 1 ratings, while Guitar Codex averages 5.0 from 3 ratings.

### Do BlueScalesTrainer or Guitar Codex have ads?

Neither BlueScalesTrainer nor Guitar Codex shows ads.

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

BlueScalesTrainer ships an update every 5 months, and Guitar Codex every 2 days. Most recently, BlueScalesTrainer was updated on October 13, 2026 and Guitar Codex on October 1, 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.*