# 【flat】公式アプリ vs armonia

【flat】公式アプリ and armonia are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

【flat】公式アプリ ships an update every 33 months, armonia every 25 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | 【flat】公式アプリ | armonia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 25 months** |
| Size | 32 MB | 38 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KAORI FUKUSHIMA](https://appshunter.io/developer/1583931219) | [Azusa Murata](https://appshunter.io/developer/1605734220) |

## What reviewers say

### 【flat】公式アプリ

[App page](https://appshunter.io/ios/app/flat/id1583931217)

**In-app purchases:** none


### armonia

[App page](https://appshunter.io/ios/app/armonia/id1605734218)

**In-app purchases:** none


## Frequently asked questions

### Is 【flat】公式アプリ free?

【flat】公式アプリ is free to download, with no in-app purchases.

### Is armonia free?

armonia is free to download, with no in-app purchases.

### Do 【flat】公式アプリ or armonia have ads?

Neither 【flat】公式アプリ nor armonia shows ads.

### Which is updated more often, 【flat】公式アプリ or armonia?

【flat】公式アプリ ships an update every 33 months, and armonia every 25 months. Most recently, 【flat】公式アプリ was updated on October 6, 2026 and armonia on October 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.*