# CORNUの公式アプリ vs ホワイトニングRABBY

The clearest difference is iOS requirement: ホワイトニングRABBY at 12.0 against CORNUの公式アプリ's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 38 months. The most recent releases landed on November 7, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | CORNUの公式アプリ | ホワイトニングRABBY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | Every 38 months |
| Size | 8 MB | 17 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TOMA KAN](https://appshunter.io/developer/1518537059) | [RIDING,K.K.](https://appshunter.io/developer/1699136869) |

## What reviewers say

### CORNUの公式アプリ

[App page](https://appshunter.io/ios/app/cornu/id1518537060)

**In-app purchases:** none


### ホワイトニングRABBY

[App page](https://appshunter.io/ios/app/rabby/id6452982228)

**In-app purchases:** none


## Frequently asked questions

### Is CORNUの公式アプリ free?

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

### Is ホワイトニングRABBY free?

ホワイトニングRABBY is free to download, with no in-app purchases.

### Do CORNUの公式アプリ or ホワイトニングRABBY have ads?

Neither CORNUの公式アプリ nor ホワイトニングRABBY shows ads.

### Which is updated more often, CORNUの公式アプリ or ホワイトニングRABBY?

CORNUの公式アプリ ships an update every 38 months, and ホワイトニングRABBY every 38 months. Most recently, CORNUの公式アプリ was updated on November 7, 2026 and ホワイトニングRABBY on October 27, 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.*