# Chord Progression Visualizer vs Harmony Lab

The clearest difference is ads: Harmony Lab at none against Chord Progression Visualizer's shown. Chord Progression Visualizer's advantage is update cadence (fortnightly vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Chord Progression Visualizer sells 2 in-app purchases, starting at $2.99 per month and Harmony Lab sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Chord Progression Visualizer ships an update fortnightly, Harmony Lab every 5 weeks. The most recent releases landed on September 16, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Chord Progression Visualizer | Harmony Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 40 MB | 29 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [WABI PLANT](https://appshunter.io/developer/668435822) | [Sean Ray Dvir](https://appshunter.io/developer/1850830113) |

## What reviewers say

### Chord Progression Visualizer

[App page](https://appshunter.io/ios/app/chord-progression-visualizer/id6760151335)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PremiumPlna | $2.99 | per month |
| Premium1Year | $29.99 | per year |


### 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 |


## Frequently asked questions

### Is Chord Progression Visualizer free?

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

### Is Harmony Lab free?

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

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

Chord Progression Visualizer shows ads; Harmony Lab does not.

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

Chord Progression Visualizer ships an update fortnightly, and Harmony Lab every 5 weeks. Most recently, Chord Progression Visualizer was updated on September 16, 2026 and Harmony Lab on September 27, 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.*