# 4em vs 크랙

The clearest difference is in-app purchases: 4em at none against 크랙's 5. 크랙's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 크랙 sells 5 one-off in-app purchases. 4em asks for nothing beyond the download.

## The numbers

| Metric | 4em | 크랙 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (25 ratings)](https://appshunter.io/ios/app/ai/id6740223370/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 37.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Free |
| Size | 20 MB | 237 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Yunsu Guk](https://appshunter.io/developer/1348856433) | [wrtn technologies Inc.](https://appshunter.io/developer/1684966734) |

## What reviewers say

### 4em

[App page](https://appshunter.io/ios/app/4em/id6477289680)

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

**In-app purchases:** none


### 크랙

[App page](https://appshunter.io/ios/app/ai/id6740223370)

Create your own stories and interact with AI characters in a variety of genres. This app allows you to build unique worlds and narratives through engaging chat conversations, offering an immersive entertainment experience.

**Highlights:** AI character chat, World and story creation, Original creator content, Multiple genres (romance, fantasy, sci-fi), Unlimited free chat, User-created content, AI memory function

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 크래커 12000+1000개 | $7.99 | one-time |
| 캔디팩 3회차 할인 | $49.99 | one-time |
| 크래커 70000+6000개 | $59.99 | one-time |
| 캔디팩 정가 | $59.99 | one-time |
| 캔디팩 2회차 할인 | $59.99 | one-time |


## Frequently asked questions

### Is 4em free?

4em is free to download, with no in-app purchases.

### Is 크랙 free?

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

### Do 4em or 크랙 have ads?

Neither 4em nor 크랙 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.*