# 우타북스 vs 초견챌린지

The clearest difference is update cadence: 초견챌린지 at every 2 days against 우타북스's every 37 months. 초견챌린지 also leads on review sentiment (100% vs 71%). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

우타북스 ships an update every 37 months, 초견챌린지 every 2 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 우타북스 | 초견챌린지 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 2 days** |
| Size | 16 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GimGui Co.](https://appshunter.io/developer/1497270629) | [jungwook cho](https://appshunter.io/developer/6791017829) |

## What reviewers say

### 우타북스

[App page](https://appshunter.io/ios/app/id1497270630)

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

**In-app purchases:** none


### 초견챌린지

[App page](https://appshunter.io/ios/app/id6800208649)

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

**In-app purchases:** none


## Frequently asked questions

### Is 우타북스 free?

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

### Is 초견챌린지 free?

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

### Do 우타북스 or 초견챌린지 have ads?

Neither 우타북스 nor 초견챌린지 shows ads.

### Which is updated more often, 우타북스 or 초견챌린지?

우타북스 ships an update every 37 months, and 초견챌린지 every 2 days. Most recently, 우타북스 was updated on November 3, 2026 and 초견챌린지 on November 6, 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.*