# 蔡姐姐/茱莉亞 vs 空中美語APP+

The clearest difference is in-app purchases: 蔡姐姐/茱莉亞 at none against 空中美語APP+'s 2. 空中美語APP+'s advantage is update cadence (every 2 weeks vs every 40 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 空中美語APP+ sells 2 in-app purchases, starting at $2.99 per month. 蔡姐姐/茱莉亞 asks for nothing beyond the download.

蔡姐姐/茱莉亞 ships an update every 40 months, 空中美語APP+ every 2 weeks. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | 蔡姐姐/茱莉亞 | 空中美語APP+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 2 weeks** |
| Size | 198 MB | 59 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) | [空中美語](https://appshunter.io/developer/1373172419) |

## What reviewers say

### 蔡姐姐/茱莉亞

[App page](https://appshunter.io/ios/app/id6448341345)

**Features:** macOS Compatibility

**In-app purchases:** none


### 空中美語APP+

[App page](https://appshunter.io/ios/app/app-plus/id6753041631)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 超值方案 | $2.99 | per month |
| AI方案 | $5.99 | per month |


## Frequently asked questions

### Is 蔡姐姐/茱莉亞 free?

蔡姐姐/茱莉亞 is free to download, with no in-app purchases.

### Is 空中美語APP+ free?

空中美語APP+ is free to download, with in-app purchases available.

### Do 蔡姐姐/茱莉亞 or 空中美語APP+ have ads?

Neither 蔡姐姐/茱莉亞 nor 空中美語APP+ shows ads.

### Which is updated more often, 蔡姐姐/茱莉亞 or 空中美語APP+?

蔡姐姐/茱莉亞 ships an update every 40 months, and 空中美語APP+ every 2 weeks. Most recently, 蔡姐姐/茱莉亞 was updated on October 4, 2026 and 空中美語APP+ on October 2, 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.*