# BlueScalesTrainer vs MoDoSolfa

The clearest difference is price: MoDoSolfa at Free against BlueScalesTrainer's $2.99. MoDoSolfa also leads on update cadence (every 3 weeks vs every 5 months). BlueScalesTrainer's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 18.2). On ads and in-app purchases there is nothing between them.

MoDoSolfa is free to download; BlueScalesTrainer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BlueScalesTrainer ships an update every 5 months, MoDoSolfa every 3 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | BlueScalesTrainer | MoDoSolfa |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/bluescalestrainer/id1455877520/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 39 MB | 30 MB |
| Requires iOS | **12.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Arnhold](https://appshunter.io/developer/432185706) | [Hidenori Ishiii](https://appshunter.io/developer/1440959870) |

## 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


### MoDoSolfa

[App page](https://appshunter.io/ios/app/modosolfa/id6749871031)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BlueScalesTrainer free?

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

### Is MoDoSolfa free?

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

### Do BlueScalesTrainer or MoDoSolfa have ads?

Neither BlueScalesTrainer nor MoDoSolfa shows ads.

### Which is updated more often, BlueScalesTrainer or MoDoSolfa?

BlueScalesTrainer ships an update every 5 months, and MoDoSolfa every 3 weeks. Most recently, BlueScalesTrainer was updated on October 13, 2026 and MoDoSolfa on October 16, 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.*