# 듀듀(DuoDuo) vs Vyuu (뷰)

The clearest difference is in-app purchases: 듀듀(DuoDuo) at none against Vyuu (뷰)'s 10. 듀듀(DuoDuo) also leads on ads (none vs shown). Vyuu (뷰)'s advantage is update cadence (every 2 days vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Vyuu (뷰) sells 10 in-app purchases, starting at $1.99 per 7 days. 듀듀(DuoDuo) asks for nothing beyond the download.

듀듀(DuoDuo) ships an update fortnightly, Vyuu (뷰) every 2 days. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 듀듀(DuoDuo) | Vyuu (뷰) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 56 MB | 25 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Youngjae Jang](https://appshunter.io/developer/1859099823) | [JAEMAN PARK](https://appshunter.io/developer/6794233619) |

## What reviewers say

### 듀듀(DuoDuo)

[App page](https://appshunter.io/ios/app/duoduo/id6756199790)

**Features:** macOS Compatibility

**In-app purchases:** none


### Vyuu (뷰)

[App page](https://appshunter.io/ios/app/vyuu/id6794233617)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vyuu Plus 주간 | $1.99 | per 7 days |
| Vyuu Premium 주간 | $2.99 | per 7 days |
| Vyuu Plus 월간 | $4.99 | per month |
| Vyuu Premium 월간 | $7.99 | per month |
| Vyuu Plus 3개월 | $11.99 | per 3 months |
| Vyuu Premium 3개월 | $14.99 | per 3 months |
| 구슬 10개 | $0.99 | one-time |
| 구슬 30개 | $2.99 | one-time |
| 구슬 50개 | $4.99 | one-time |
| 구슬 300개 | $19.99 | one-time |


## Frequently asked questions

### Is 듀듀(DuoDuo) free?

듀듀(DuoDuo) is free to download, with no in-app purchases.

### Is Vyuu (뷰) free?

Vyuu (뷰) is free to download, with in-app purchases available.

### Do 듀듀(DuoDuo) or Vyuu (뷰) have ads?

Vyuu (뷰) shows ads; 듀듀(DuoDuo) does not.

### Which is updated more often, 듀듀(DuoDuo) or Vyuu (뷰)?

듀듀(DuoDuo) ships an update fortnightly, and Vyuu (뷰) every 2 days. Most recently, 듀듀(DuoDuo) was updated on October 8, 2026 and Vyuu (뷰) on October 5, 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.*