# 듀듀(DuoDuo) vs Seazon

The clearest difference is update cadence: Seazon at every 4 days against 듀듀(DuoDuo)'s fortnightly. 듀듀(DuoDuo)'s advantage is iOS requirement (15.1 vs 17.0). 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.

듀듀(DuoDuo) ships an update fortnightly, Seazon every 4 days. The most recent releases landed on September 21, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 듀듀(DuoDuo) | Seazon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 56 MB | 37 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Youngjae Jang](https://appshunter.io/developer/1859099823) | [seongbin Bae](https://appshunter.io/developer/1872147079) |

## What reviewers say

### 듀듀(DuoDuo)

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Seazon

[App page](https://appshunter.io/ios/app/seazon/id6792326048)

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

**In-app purchases:** none


## Frequently asked questions

### Is 듀듀(DuoDuo) free?

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

### Is Seazon free?

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

### Do 듀듀(DuoDuo) or Seazon have ads?

Neither 듀듀(DuoDuo) nor Seazon shows ads.

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

듀듀(DuoDuo) ships an update fortnightly, and Seazon every 4 days. Most recently, 듀듀(DuoDuo) was updated on September 21, 2026 and Seazon on September 30, 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.*