# 书童AR互动科普 vs 像素单词

The clearest difference is in-app purchases: 书童AR互动科普 at none against 像素单词's 7. 书童AR互动科普 also leads on update cadence (every 6 weeks vs every 4 months) and iOS requirement (10.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. 像素单词 sells 7 one-off in-app purchases. 书童AR互动科普 asks for nothing beyond the download.

书童AR互动科普 ships an update every 6 weeks, 像素单词 every 4 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 书童AR互动科普 | 像素单词 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 2.7 GB | 89 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [训龙 何](https://appshunter.io/developer/878033547) | [海瑞 束](https://appshunter.io/developer/1618207642) |

## What reviewers say

### 书童AR互动科普

[App page](https://appshunter.io/ios/app/ar/id1239255493)

**Features:** macOS Compatibility

**In-app purchases:** none


### 像素单词

[App page](https://appshunter.io/ios/app/id1618265393)

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 四级英语词汇 | $0.99 | one-time |
| 六级英语词汇 | $1.99 | one-time |
| 考研英语词汇 | $1.99 | one-time |
| 专四核心词汇 | $1.99 | one-time |
| 专八核心词汇 | $1.99 | one-time |
| 雅思英语词汇 | $1.99 | one-time |
| 托福英语词汇 | $1.99 | one-time |


## Frequently asked questions

### Is 书童AR互动科普 free?

书童AR互动科普 is free to download, with no in-app purchases.

### Is 像素单词 free?

像素单词 is free to download, with in-app purchases available.

### Do 书童AR互动科普 or 像素单词 have ads?

Neither 书童AR互动科普 nor 像素单词 shows ads.

### Which is updated more often, 书童AR互动科普 or 像素单词?

书童AR互动科普 ships an update every 6 weeks, and 像素单词 every 4 months. Most recently, 书童AR互动科普 was updated on October 29, 2026 and 像素单词 on October 25, 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.*