# KSアプリ for iPhone vs J.sweets Harmony

The clearest difference is update cadence: J.sweets Harmony at every 12 months against KSアプリ for iPhone's every 40 months. KSアプリ for iPhone's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KSアプリ for iPhone ships an update every 40 months, J.sweets Harmony every 12 months. Both last shipped on September 13, 2026.

## The numbers

| Metric | KSアプリ for iPhone | J.sweets Harmony |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 12 months** |
| Size | 8 MB | 2 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Globenetsystem, Inc.](https://appshunter.io/developer/1070989321) | [K.MINAMOTO CO., LTD.](https://appshunter.io/developer/1827404637) |

## What reviewers say

### KSアプリ for iPhone

[App page](https://appshunter.io/ios/app/ks-for-iphone/id1267195218)

**Features:** macOS Compatibility

**In-app purchases:** none


### J.sweets Harmony

[App page](https://appshunter.io/ios/app/jsweets-harmony/id6748806864)

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

**In-app purchases:** none


## Frequently asked questions

### Is KSアプリ for iPhone free?

KSアプリ for iPhone is free to download, with no in-app purchases.

### Is J.sweets Harmony free?

J.sweets Harmony is free to download, with no in-app purchases.

### Do KSアプリ for iPhone or J.sweets Harmony have ads?

Neither KSアプリ for iPhone nor J.sweets Harmony shows ads.

### Which is updated more often, KSアプリ for iPhone or J.sweets Harmony?

KSアプリ for iPhone ships an update every 40 months, and J.sweets Harmony every 12 months. Most recently, KSアプリ for iPhone was updated on September 13, 2026 and J.sweets Harmony on September 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.*