# 奇石英语 vs 跨学科爱自然

The clearest difference is iOS requirement: 奇石英语 at 13.0 against 跨学科爱自然's 15. On price, update cadence, ads and in-app purchases there is nothing between them.

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

奇石英语 ships an update every 2 months, 跨学科爱自然 every 3 months. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 奇石英语 | 跨学科爱自然 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 446 MB | 55 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [西亚 刘](https://appshunter.io/developer/1210557596) | [上海校腾信息科技有限公司](https://appshunter.io/developer/1294213436) |

## What reviewers say

### 奇石英语

[App page](https://appshunter.io/ios/app/id1296720893)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 跨学科爱自然

[App page](https://appshunter.io/ios/app/id6450295536)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 奇石英语 free?

奇石英语 is free to download, with no in-app purchases.

### Is 跨学科爱自然 free?

跨学科爱自然 is free to download, with no in-app purchases.

### Do 奇石英语 or 跨学科爱自然 have ads?

Neither 奇石英语 nor 跨学科爱自然 shows ads.

### Which is updated more often, 奇石英语 or 跨学科爱自然?

奇石英语 ships an update every 2 months, and 跨学科爱自然 every 3 months. Most recently, 奇石英语 was updated on October 20, 2026 and 跨学科爱自然 on October 5, 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.*