# 에어서울 vs B

The clearest difference is update cadence: B at every 2 days against 에어서울's every 3 months. 에어서울's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, 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.

에어서울 ships an update every 3 months, B every 2 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 에어서울 | B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.3 (8 ratings)](https://appshunter.io/ios/app/id1140026677/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 4.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 11 MB | 83 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Air Seoul Co.,Ltd.](https://appshunter.io/developer/1140026676) | [bora jin](https://appshunter.io/developer/1873302174) |

## What reviewers say

### 에어서울

[App page](https://appshunter.io/ios/app/id1140026677)

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

**In-app purchases:** none


### B

[App page](https://appshunter.io/ios/app/b/id6790153674)

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

**In-app purchases:** none


## Frequently asked questions

### Is 에어서울 free?

에어서울 is free to download, with no in-app purchases.

### Is B free?

B is free to download, with no in-app purchases.

### Do 에어서울 or B have ads?

Neither 에어서울 nor B shows ads.

### Which is updated more often, 에어서울 or B?

에어서울 ships an update every 3 months, and B every 2 days. Most recently, 에어서울 was updated on November 6, 2026 and B on October 31, 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.*