# Windtone by Sonofield vs Hark

The clearest difference is in-app purchases: Windtone by Sonofield at none against Hark's 1. Windtone by Sonofield also leads on ratings volume (18 vs 1) and device support (3 vs 1). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Hark sells 1 one-off in-app purchase. Windtone by Sonofield asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Windtone by Sonofield against 5.0 for Hark. That said, the two scores are not equally well evidenced: Windtone by Sonofield has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Windtone by Sonofield ships an update every 5 days, Hark every 4 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Windtone by Sonofield | Hark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (18 ratings)](https://appshunter.io/ios/app/windtone-by-sonofield/id6772116401/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hark-ear-training/id6809023239/reviews)** |
| Number of ratings | **18** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 29 MB | 11 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sonofield Ear Trainer Education Ltd.](https://appshunter.io/developer/1789801335) | [Ilia Usatov](https://appshunter.io/developer/1868442271) |

## What reviewers say

### 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


### Hark

[App page](https://appshunter.io/ios/app/hark-ear-training/id6809023239)

This app trains musicians to identify notes within a musical key, focusing on their relationship to the tonic. It offers various training modes, including single notes, melodies, and chord progressions, with hands-free operation for convenient practice.

**Highlights:** Identify notes as scale degrees, Hands-free training mode, Multiple training modes (degrees, melodies, chords, progressions), Visual staff with colored notes, Explore any note in any key, Multiple instrument sounds

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hark Pro | $19.99 | one-time |


## Frequently asked questions

### Is Windtone by Sonofield free?

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

### Is Hark free?

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

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

Hark is rated higher. Windtone by Sonofield averages 4.9 out of 5 from 18 ratings, while Hark averages 5.0 from 1 ratings.

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

Neither Windtone by Sonofield nor Hark shows ads.

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

Windtone by Sonofield ships an update every 5 days, and Hark every 4 days. Most recently, Windtone by Sonofield was updated on October 14, 2026 and Hark on October 11, 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.*