# かさねうた vs Harmony Chack

The clearest difference is in-app purchases: かさねうた at none against Harmony Chack's 1. Harmony Chack's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Harmony Chack sells 1 one-off in-app purchase. かさねうた asks for nothing beyond the download.

かさねうた ships an update every 2 weeks, Harmony Chack fortnightly. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | かさねうた | Harmony Chack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 5 MB | 34 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Kouki Ohta](https://appshunter.io/developer/6786263873) | [Hironori Karube](https://appshunter.io/developer/1880243912) |

## What reviewers say

### かさねうた

[App page](https://appshunter.io/ios/app/id6801467169)

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

**In-app purchases:** none


### 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 かさねうた free?

かさねうた is free to download, with no in-app purchases.

### Is Harmony Chack free?

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

### Do かさねうた or Harmony Chack have ads?

かさねうた shows ads; Harmony Chack does not.

### Which is updated more often, かさねうた or Harmony Chack?

かさねうた ships an update every 2 weeks, and Harmony Chack fortnightly. Most recently, かさねうた was updated on October 25, 2026 and Harmony Chack on October 15, 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.*