# びっくりアプリ vs 回転してるのな〜んだ？

The clearest difference is review sentiment: びっくりアプリ at 100% against 回転してるのな〜んだ？'s 0%. 回転してるのな〜んだ？'s advantage is price (Free vs $1.99) and update cadence (weekly vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

回転してるのな〜んだ？ is free to download; びっくりアプリ costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

びっくりアプリ ships an update every 4 months, 回転してるのな〜んだ？ weekly. The most recent releases landed on June 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | びっくりアプリ | 回転してるのな〜んだ？ |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id1508282901/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Size | 20 MB | 39 MB |
| Requires iOS | **14.2** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Yusaku Fujita](https://appshunter.io/developer/1506740830) | [Toshiyuki Susa](https://appshunter.io/developer/1556426603) |

## What reviewers say

### びっくりアプリ

[App page](https://appshunter.io/ios/app/id1508282901)

**Features:** macOS Compatibility

**In-app purchases:** none


### 回転してるのな〜んだ？

[App page](https://appshunter.io/ios/app/id1611895973)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is びっくりアプリ free?

びっくりアプリ costs $1.99, with no in-app purchases.

### Is 回転してるのな〜んだ？ free?

回転してるのな〜んだ？ is free to download, with no in-app purchases.

### Do びっくりアプリ or 回転してるのな〜んだ？ have ads?

Both びっくりアプリ and 回転してるのな〜んだ？ show ads.

### Which is updated more often, びっくりアプリ or 回転してるのな〜んだ？?

びっくりアプリ ships an update every 4 months, and 回転してるのな〜んだ？ weekly. Most recently, びっくりアプリ was updated on June 19, 2026 and 回転してるのな〜んだ？ on September 18, 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.*