# エスワンの公式アプリ vs ホワイトニングRABBY

エスワンの公式アプリ and ホワイトニングRABBY 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.

エスワンの公式アプリ ships an update every 33 months, ホワイトニングRABBY every 38 months. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | エスワンの公式アプリ | ホワイトニングRABBY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 33 months** | Every 38 months |
| Size | 19 MB | 17 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DML, K.K.](https://appshunter.io/developer/1486567732) | [RIDING,K.K.](https://appshunter.io/developer/1699136869) |

## What reviewers say

### エスワンの公式アプリ

[App page](https://appshunter.io/ios/app/id1486567733)

**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 エスワンの公式アプリ free?

エスワンの公式アプリ 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 エスワンの公式アプリ or ホワイトニングRABBY have ads?

Neither エスワンの公式アプリ nor ホワイトニングRABBY shows ads.

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

エスワンの公式アプリ ships an update every 33 months, and ホワイトニングRABBY every 38 months. Most recently, エスワンの公式アプリ was updated on October 1, 2026 and ホワイトニングRABBY 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.*