# Orbital Harp vs Harmony Lab

The clearest difference is update cadence: Orbital Harp at every 5 days against Harmony Lab's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Orbital Harp sells 1 one-off in-app purchase and Harmony Lab sells 6 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Orbital Harp ships an update every 5 days, Harmony Lab every 2 months. Both last shipped on November 5, 2026.

## The numbers

| Metric | Orbital Harp | Harmony Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/orbital-harp/id6757623564/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 33 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Static Void Studio, LLC](https://appshunter.io/developer/1831827968) | [Sean Ray Dvir](https://appshunter.io/developer/1850830113) |

## What reviewers say

### Orbital Harp

[App page](https://appshunter.io/ios/app/orbital-harp/id6757623564)

Create unique orbital symphonies by tapping to generate planets that play notes as they orbit suns. Experience ever-changing soundscapes that blend chaos and calm, with a variety of instruments and visual effects.

**Highlights:** Generative music creation, 17 unique instruments, Beautiful nebula visuals, Multiple musical scales, Configurable physics and effects, Background playback, MIDI support (Premium)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Upgrade | $4.99 | one-time |


### Harmony Lab

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

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $1.99 | per month |
| Full Access | $4.99 | per month |
| Melodic Mind Standard Monthly | $7.99 | per month |
| Melodic Mind Pro Monthly | $11.99 | per month |
| Melodic Mind Standard Yearly | $59.99 | per year |
| Melodic Mind Pro Yearly | $89.99 | per year |


## Frequently asked questions

### Is Orbital Harp free?

Orbital Harp 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 Orbital Harp or Harmony Lab have ads?

Neither Orbital Harp nor Harmony Lab shows ads.

### Which is updated more often, Orbital Harp or Harmony Lab?

Orbital Harp ships an update every 5 days, and Harmony Lab every 2 months. Most recently, Orbital Harp was updated on November 5, 2026 and Harmony Lab on November 5, 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.*