# Irisの公式アプリ vs nails&school D.I.A

The clearest difference is update cadence: nails&school D.I.A at every 38 months against Irisの公式アプリ's every 82 months. 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.

Irisの公式アプリ ships an update every 82 months, nails&school D.I.A every 38 months. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Irisの公式アプリ | nails&school D.I.A |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 82 months | **Every 38 months** |
| Size | 16 MB | 15 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUJI ENDO](https://appshunter.io/developer/1448437813) | [MAMI KUNIHIRO](https://appshunter.io/developer/1507151249) |

## What reviewers say

### Irisの公式アプリ

[App page](https://appshunter.io/ios/app/iris/id1448437814)

**Features:** macOS Compatibility

**In-app purchases:** none


### nails&school D.I.A

[App page](https://appshunter.io/ios/app/nails-and-school-dia/id1507151250)

**In-app purchases:** none


## Frequently asked questions

### Is Irisの公式アプリ free?

Irisの公式アプリ is free to download, with no in-app purchases.

### Is nails&school D.I.A free?

nails&school D.I.A is free to download, with no in-app purchases.

### Do Irisの公式アプリ or nails&school D.I.A have ads?

Neither Irisの公式アプリ nor nails&school D.I.A shows ads.

### Which is updated more often, Irisの公式アプリ or nails&school D.I.A?

Irisの公式アプリ ships an update every 82 months, and nails&school D.I.A every 38 months. Most recently, Irisの公式アプリ was updated on September 9, 2026 and nails&school D.I.A on September 22, 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.*