# Harmony Lab vs Chord Progression Lab

The clearest difference is price: Harmony Lab at Free against Chord Progression Lab's $0.99. Harmony Lab also leads on iOS requirement (17.6 vs 26.5). Chord Progression Lab's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Harmony Lab is free to download; Chord Progression Lab costs $0.99 up front. Harmony Lab sells 2 in-app purchases, starting at $1.99 per month. Chord Progression Lab asks for nothing beyond the download.

## The numbers

| Metric | Harmony Lab | Chord Progression Lab |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Size | 29 MB | 2 MB |
| Requires iOS | **17.6** | 26.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sean Ray Dvir](https://appshunter.io/developer/1850830113) | [David Mickey](https://appshunter.io/developer/1506246434) |

## What reviewers say

### Harmony Lab

[App page](https://appshunter.io/ios/app/harmony-labchord-progressions/id6766231122)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $1.99 | per month |
| Full Access | $4.99 | per month |


### Chord Progression Lab

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Harmony Lab free?

Harmony Lab is free to download, with in-app purchases available.

### Is Chord Progression Lab free?

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

### Do Harmony Lab or Chord Progression Lab have ads?

Neither Harmony Lab nor Chord Progression Lab 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.*