# Otonic vs Windtone by Sonofield

The clearest difference is in-app purchases: Windtone by Sonofield at none against Otonic's 3. Windtone by Sonofield also leads on review sentiment (100% vs 67%) and ratings volume (15 vs 4). Otonic's advantage is iOS requirement (12.0 vs 15.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Otonic sells 3 one-off in-app purchases. Windtone by Sonofield asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Otonic against 4.9 for Windtone by Sonofield. Both are backed by a comparable volume of ratings — 4 and 15 respectively. Written reviews are what separate them: 67% of Otonic's written reviews are positive against 100% of Windtone by Sonofield's.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on June 4, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Otonic | Windtone by Sonofield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/otonic/id6740495154/reviews)** | [4.9 (15 ratings)](https://appshunter.io/ios/app/windtone-by-sonofield/id6772116401/reviews) |
| Number of ratings | 4 | **15** |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 59 MB | 29 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Blackwell](https://appshunter.io/developer/1790247519) | [Sonofield Ear Trainer Education Ltd.](https://appshunter.io/developer/1789801335) |

## What reviewers say

### Otonic

[App page](https://appshunter.io/ios/app/otonic/id6740495154)

Enhance your musical abilities with a comprehensive ear training application. Features a level editor for personalized learning experiences and progression tracking.

**Highlights:** Fully featured ear training, Level editor, Progression editor, Personalized learning, Music skill enhancement

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otonic Pro | $6.99 | one-time |
| Otonic Essential | $19.99 | one-time |
| Otonic Pro | $39.99 | one-time |


### Windtone by Sonofield

[App page](https://appshunter.io/ios/app/windtone-by-sonofield/id6772116401)

This app offers a meditative ear training experience for musicians. It generates endless wind-chime melodies based on chosen scales, with adjustable complexity and real-time note labels. Enjoy a relaxing practice environment with natural ambiences and a tonic reference.

**Highlights:** Scale degree recognition, Over 30 preset scales, Real-time note labels, Adjustable melodic complexity, Natural background ambiences, Tonic reference chime, Playable chimes

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

**In-app purchases:** none


## Frequently asked questions

### Is Otonic free?

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

### Is Windtone by Sonofield free?

Windtone by Sonofield is free to download, with no in-app purchases.

### Which has better reviews, Otonic or Windtone by Sonofield?

Otonic is rated higher. Otonic averages 5.0 out of 5 from 4 ratings, while Windtone by Sonofield averages 4.9 from 15 ratings.

### Do Otonic or Windtone by Sonofield have ads?

Neither Otonic nor Windtone by Sonofield shows ads.

### Which is updated more often, Otonic or Windtone by Sonofield?

Otonic ships an update every 5 days, and Windtone by Sonofield every 5 days. Most recently, Otonic was updated on June 4, 2026 and Windtone by Sonofield on September 23, 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.*