# 睡眠ドッグ vs Who's Next

睡眠ドッグ and Who's Next are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.

## The numbers

| Metric | 睡眠ドッグ | Who's Next |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 9 MB | 1 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [Hayato Kitaoka](https://appshunter.io/developer/1634161426) | [MOMOKO NAKADA](https://appshunter.io/developer/1766990830) |

## What reviewers say

### 睡眠ドッグ

[App page](https://appshunter.io/ios/app/id6475922311)

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

**In-app purchases:** none


### Who's Next

[App page](https://appshunter.io/ios/app/whos-next/id6736846440)

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

**In-app purchases:** none


## Frequently asked questions

### Is 睡眠ドッグ free?

睡眠ドッグ is free to download, with no in-app purchases.

### Is Who's Next free?

Who's Next is free to download, with no in-app purchases.

### Do 睡眠ドッグ or Who's Next have ads?

Neither 睡眠ドッグ nor Who's Next shows ads.

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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.*