# Harmony Cloud Pro vs Open Studio Jazz

The clearest difference is ratings volume: Harmony Cloud Pro at 65 against Open Studio Jazz's 5. Open Studio Jazz's advantage is review sentiment (100% vs 87%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Harmony Cloud Pro sells 2 in-app purchases, starting at $5.99 per month and Open Studio Jazz sells 4 in-app purchases, starting at $39.00 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Harmony Cloud Pro against 5.0 for Open Studio Jazz. That said, the two scores are not equally well evidenced: Harmony Cloud Pro has 65 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 87% of Harmony Cloud Pro's written reviews are positive against 100% of Open Studio Jazz's.

Harmony Cloud Pro ships an update weekly, Open Studio Jazz every 5 days. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Harmony Cloud Pro | Open Studio Jazz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (65 ratings)](https://appshunter.io/ios/app/harmony-cloud-pro/id6748590924/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/open-studio-jazz/id6752910402/reviews) |
| Number of ratings | **65** | 5 |
| Positive reviews | 86.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 194 MB | 51 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Melodic Progression Institute LLC](https://appshunter.io/developer/1054588451) | [Open Studio Network LLC](https://appshunter.io/developer/1841397358) |

## What reviewers say

### Harmony Cloud Pro

[App page](https://appshunter.io/ios/app/harmony-cloud-pro/id6748590924)

This app helps musicians of all levels develop their ear for harmony and improvisation. It generates endless, unpredictable chord progressions based on user-selected chords, allowing for personalized learning and exploration of musical concepts.

**Highlights:** Ear training for musicians, Improvisation exploration, Generates unpredictable chord progressions, Customizable tempo, volume, and key, Tailorable to all skill levels, Patented harmonic algorithm

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Annual | $59.99 | per year |


### Open Studio Jazz

[App page](https://appshunter.io/ios/app/open-studio-jazz/id6752910402)

This platform offers guided jazz education for all skill levels, featuring weekly lessons on real jazz standards and pathways for practice. Learn from renowned jazz musicians and track your progress across devices.

**Highlights:** Weekly new jazz standard lessons, Guided practice pathways, Courses by legendary jazz musicians, Progress tracking across devices, Beginner to advanced levels, Full library of technique, theory, and improvisation courses

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Open Studio (Monthly) | $39.00 | per month |
| Open Studio Pro (Monthly) | $97.00 | per month |
| Open Studio (Annual) | $390.00 | per year |
| Open Studio Pro (Annual) | $559.99 | per year |


## Frequently asked questions

### Is Harmony Cloud Pro free?

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

### Is Open Studio Jazz free?

Open Studio Jazz is free to download, with in-app purchases available.

### Which has better reviews, Harmony Cloud Pro or Open Studio Jazz?

Harmony Cloud Pro and Open Studio Jazz are both rated 5.0 out of 5 on the App Store, from 65 and 5 ratings respectively.

### Do Harmony Cloud Pro or Open Studio Jazz have ads?

Neither Harmony Cloud Pro nor Open Studio Jazz shows ads.

### Which is updated more often, Harmony Cloud Pro or Open Studio Jazz?

Harmony Cloud Pro ships an update weekly, and Open Studio Jazz every 5 days. Most recently, Harmony Cloud Pro was updated on October 11, 2026 and Open Studio Jazz on October 13, 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.*