# Chord Progression Lab vs Scale Syllabus

The clearest difference is price: Scale Syllabus at Free against Chord Progression Lab's $0.99. Scale Syllabus also leads on device support (4 vs 2) and iOS requirement (15.0 vs 26.5). Chord Progression Lab's advantage is in-app purchases (none vs 1) and chart position (#183 vs unranked). On ads there is nothing between them.

Scale Syllabus is free to download; Chord Progression Lab costs $0.99 up front. Scale Syllabus sells 1 one-off in-app purchase. Chord Progression Lab asks for nothing beyond the download.

## The numbers

| Metric | Chord Progression Lab | Scale Syllabus |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Best chart rank | **#183** | — |
| Size | 2 MB | 23 MB |
| Requires iOS | 26.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [David Mickey](https://appshunter.io/developer/1506246434) | [Barbaro Gianluca](https://appshunter.io/developer/1767112432) |

## What reviewers say

### Chord Progression Lab

[App page](https://appshunter.io/ios/app/chord-progression-lab/id6778928044)

**Currently charting:** #183 Top Paid · Music (US App Store)

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

**In-app purchases:** none


### Scale Syllabus

[App page](https://appshunter.io/ios/app/scale-syllabus/id6799873234)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scale Syllabus Complete | $8.99 | one-time |


## Frequently asked questions

### Is Chord Progression Lab free?

Chord Progression Lab costs $0.99, with no in-app purchases.

### Is Scale Syllabus free?

Scale Syllabus is free to download, with in-app purchases available.

### Do Chord Progression Lab or Scale Syllabus have ads?

Neither Chord Progression Lab nor Scale Syllabus shows ads.

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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.*