# 遊戲綠卡 vs 堆堆duidui

遊戲綠卡 and 堆堆duidui 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 | 遊戲綠卡 | 堆堆duidui |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 22 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Game Green Card Co., Ltd](https://appshunter.io/developer/1728812155) | [Guan Jian Co.,Ltd](https://appshunter.io/developer/6786197963) |

## What reviewers say

### 遊戲綠卡

[App page](https://appshunter.io/ios/app/id6477273598)

**Features:** macOS Compatibility

**In-app purchases:** none


### 堆堆duidui

[App page](https://appshunter.io/ios/app/duidui/id6786197961)

**In-app purchases:** none


## Frequently asked questions

### Is 遊戲綠卡 free?

遊戲綠卡 is free to download, with no in-app purchases.

### Is 堆堆duidui free?

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

### Do 遊戲綠卡 or 堆堆duidui have ads?

Neither 遊戲綠卡 nor 堆堆duidui 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.*