# 듀듀(DuoDuo) vs 하트스코어

듀듀(DuoDuo) and 하트스코어 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | 듀듀(DuoDuo) | 하트스코어 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 56 MB | 9 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Youngjae Jang](https://appshunter.io/developer/1859099823) | [MJ Insight Co., Ltd.](https://appshunter.io/developer/6785706672) |

## What reviewers say

### 듀듀(DuoDuo)

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 하트스코어

[App page](https://appshunter.io/ios/app/id6792155175)

**In-app purchases:** none


## Frequently asked questions

### Is 듀듀(DuoDuo) free?

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

### Is 하트스코어 free?

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

### Do 듀듀(DuoDuo) or 하트스코어 have ads?

Neither 듀듀(DuoDuo) nor 하트스코어 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.*