# One 버스 vs Seoul Subway Map

The clearest difference is update cadence: Seoul Subway Map at every 5 days against One 버스's monthly. One 버스's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

One 버스 ships an update monthly, Seoul Subway Map every 5 days. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | One 버스 | Seoul Subway Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 5 days** |
| Size | 98 MB | 48 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jeongwook Lee](https://appshunter.io/developer/1669951610) | [SY KHANH HO](https://appshunter.io/developer/1851698856) |

## What reviewers say

### One 버스

[App page](https://appshunter.io/ios/app/one/id6448973717)

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

**In-app purchases:** none


### Seoul Subway Map

[App page](https://appshunter.io/ios/app/seoul-subway-map/id6807264598)

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

**In-app purchases:** none


## Frequently asked questions

### Is One 버스 free?

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

### Is Seoul Subway Map free?

Seoul Subway Map is free to download, with no in-app purchases.

### Do One 버스 or Seoul Subway Map have ads?

Both One 버스 and Seoul Subway Map show ads.

### Which is updated more often, One 버스 or Seoul Subway Map?

One 버스 ships an update monthly, and Seoul Subway Map every 5 days. Most recently, One 버스 was updated on October 25, 2026 and Seoul Subway Map on October 26, 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.*