# 四年级奥数专业版 vs 卡S游戏社区

The clearest difference is price: 卡S游戏社区 at Free against 四年级奥数专业版's $0.99. 卡S游戏社区 also leads on update cadence (every 4 days vs every 12 months). 四年级奥数专业版's advantage is iOS requirement (8.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

卡S游戏社区 is free to download; 四年级奥数专业版 costs $0.99 up front. 四年级奥数专业版 sells 4 one-off in-app purchases and 卡S游戏社区 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

四年级奥数专业版 ships an update every 12 months, 卡S游戏社区 every 4 days. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 四年级奥数专业版 | 卡S游戏社区 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[1.5 (19 ratings)](https://appshunter.io/ios/app/s/id6748314093/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 6 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [志军 王](https://appshunter.io/developer/842570665) | [佳伟 韩](https://appshunter.io/developer/1759077833) |

## What reviewers say

### 四年级奥数专业版

[App page](https://appshunter.io/ios/app/id1208534417)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 试卷生成功能 | Free | one-time |
| 付费题目包(一) | Free | one-time |
| 无限制全部功能 | $0.99 | one-time |
| 付费题目包(二) | $0.99 | one-time |


### 卡S游戏社区

[App page](https://appshunter.io/ios/app/s/id6748314093)

This app is a community and resource tool for a specific card game, focusing on World War II themes. Users can share strategies, track game progress, and analyze match data offline. It's a platform for players to connect and improve their tactical skills.

**Highlights:** Card deck building, Match record tracking, Offline data analysis, Collection management, Strategy sharing, Community forum

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 卡S社区永久会员 | $1.99 | one-time |


## Frequently asked questions

### Is 四年级奥数专业版 free?

四年级奥数专业版 costs $0.99, and also offers in-app purchases.

### Is 卡S游戏社区 free?

卡S游戏社区 is free to download, with in-app purchases available.

### Do 四年级奥数专业版 or 卡S游戏社区 have ads?

Neither 四年级奥数专业版 nor 卡S游戏社区 shows ads.

### Which is updated more often, 四年级奥数专业版 or 卡S游戏社区?

四年级奥数专业版 ships an update every 12 months, and 卡S游戏社区 every 4 days. Most recently, 四年级奥数专业版 was updated on November 2, 2026 and 卡S游戏社区 on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*