# Harmony Lab vs Chord Progression Generator □

The clearest difference is update cadence: Chord Progression Generator □ at every 9 days against Harmony Lab's every 5 weeks. Chord Progression Generator □ also leads on iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Harmony Lab sells 2 in-app purchases, starting at $1.99 per month and Chord Progression Generator □ sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Harmony Lab ships an update every 5 weeks, Chord Progression Generator □ every 9 days. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Harmony Lab | Chord Progression Generator □ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/chord-progression-generator/id6804688686/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 29 MB | 63 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sean Ray Dvir](https://appshunter.io/developer/1850830113) | [RapidNova](https://appshunter.io/developer/1826052446) |

## 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 Generator □

[App page](https://appshunter.io/ios/app/chord-progression-generator/id6804688686)

This music app generates chord progressions based on your desired key, mood, and complexity. It provides playable charts for guitar and piano, with options to save, export, and hear the progressions within the app. Premium features unlock extended capabilities.

**Highlights:** AI chord progression generation, Key and mood selection, Guitar fret shapes, Piano voicings, Playable charts, ChordPro and plain text export, Audio playback

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CPG_Pro | $4.99 | per 7 days |
| CPG_Pro_Yearly | $29.99 | per year |


## Frequently asked questions

### Is Harmony Lab free?

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

### Is Chord Progression Generator □ free?

Chord Progression Generator □ is free to download, with in-app purchases available.

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

Neither Harmony Lab nor Chord Progression Generator □ shows ads.

### Which is updated more often, Harmony Lab or Chord Progression Generator □?

Harmony Lab ships an update every 5 weeks, and Chord Progression Generator □ every 9 days. Most recently, Harmony Lab was updated on October 12, 2026 and Chord Progression Generator □ 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.*