# Sonaris vs Harmony Chack

The clearest difference is ads: Harmony Chack at none against Sonaris's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

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

Sonaris ships an update weekly, Harmony Chack fortnightly. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Sonaris | Harmony Chack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Size | 63 MB | 34 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Grodzki](https://appshunter.io/developer/6779287685) | [Hironori Karube](https://appshunter.io/developer/1880243912) |

## What reviewers say

### Sonaris

[App page](https://appshunter.io/ios/app/sonaris-ear-training/id6779287683)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sonaris Premium | $1.99 | per month |


### Harmony Chack

[App page](https://appshunter.io/ios/app/harmony-chack/id6803001408)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム | $0.99 | one-time |


## Frequently asked questions

### Is Sonaris free?

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

### Is Harmony Chack free?

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

### Do Sonaris or Harmony Chack have ads?

Sonaris shows ads; Harmony Chack does not.

### Which is updated more often, Sonaris or Harmony Chack?

Sonaris ships an update weekly, and Harmony Chack fortnightly. Most recently, Sonaris was updated on November 5, 2026 and Harmony Chack on November 6, 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.*