# 研成了 vs AR书香地球

The clearest difference is in-app purchases: AR书香地球 at none against 研成了's 1. AR书香地球 also leads on update cadence (every 5 weeks vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 研成了 sells 1 one-off in-app purchase. AR书香地球 asks for nothing beyond the download.

研成了 ships an update every 12 months, AR书香地球 every 5 weeks. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 研成了 | AR书香地球 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 weeks** |
| Size | 42 MB | 705 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [鑫 李](https://appshunter.io/developer/1614393207) | [Beijing Shuxiang Wenya Book Culture Co., Ltd.](https://appshunter.io/developer/1693173654) |

## What reviewers say

### 研成了

[App page](https://appshunter.io/ios/app/id1619245711)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 管理类综合•联考写作•精讲课 | $299.99 | one-time |


### AR书香地球

[App page](https://appshunter.io/ios/app/ar/id6469944864)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 研成了 free?

研成了 is free to download, with in-app purchases available.

### Is AR书香地球 free?

AR书香地球 is free to download, with no in-app purchases.

### Do 研成了 or AR书香地球 have ads?

Neither 研成了 nor AR书香地球 shows ads.

### Which is updated more often, 研成了 or AR书香地球?

研成了 ships an update every 12 months, and AR书香地球 every 5 weeks. Most recently, 研成了 was updated on October 27, 2026 and AR书香地球 on October 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.*