# ZEROWELL vs 슬립베러베이비

The clearest difference is in-app purchases: ZEROWELL at none against 슬립베러베이비's 1. ZEROWELL also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. 슬립베러베이비 sells 1 in-app purchase, starting at $6.99 per month. ZEROWELL asks for nothing beyond the download.

## The numbers

| Metric | ZEROWELL | 슬립베러베이비 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 23 months | — |
| Size | 190 MB | 31 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [ZEROWELL Inc.](https://appshunter.io/developer/1588858653) | [Sleep Better Baby Korea Co., Ltd](https://appshunter.io/developer/1754059777) |

## What reviewers say

### ZEROWELL

[App page](https://appshunter.io/ios/app/zerowell/id1588858651)

**Features:** macOS Compatibility

**In-app purchases:** none


### 슬립베러베이비

[App page](https://appshunter.io/ios/app/id6504840067)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 프리미엄 월간 구독 | $6.99 | per month |


## Frequently asked questions

### Is ZEROWELL free?

ZEROWELL is free to download, with no in-app purchases.

### Is 슬립베러베이비 free?

슬립베러베이비 is free to download, with in-app purchases available.

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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.*