# スマイル vs ホワイトニングRABBY

スマイル 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.

スマイル ships an update every 39 months, ホワイトニングRABBY every 38 months. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | スマイル | ホワイトニングRABBY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 38 months** |
| Size | 63 MB | 17 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHIYOKO TSUJI](https://appshunter.io/developer/1534984879) | [RIDING,K.K.](https://appshunter.io/developer/1699136869) |

## What reviewers say

### スマイル

[App page](https://appshunter.io/ios/app/id1534984877)

**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 スマイル free?

スマイル 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 スマイル or ホワイトニングRABBY have ads?

Neither スマイル nor ホワイトニングRABBY shows ads.

### Which is updated more often, スマイル or ホワイトニングRABBY?

スマイル ships an update every 39 months, and ホワイトニングRABBY every 38 months. Most recently, スマイル was updated on November 7, 2026 and ホワイトニングRABBY on November 12, 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.*