# 레일휘슬 vs 해외건설통합정보서비스

The clearest difference is update cadence: 레일휘슬 at every 8 months against 해외건설통합정보서비스's every 20 months. On price, ads, in-app purchases and device support there is nothing between them.

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

레일휘슬 ships an update every 8 months, 해외건설통합정보서비스 every 20 months. The most recent releases landed on September 23, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 레일휘슬 | 해외건설통합정보서비스 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 20 months |
| Size | 23 MB | 4 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [한국철도공사](https://appshunter.io/developer/404736496) | [해외건설협회](https://appshunter.io/developer/1663149541) |

## What reviewers say

### 레일휘슬

[App page](https://appshunter.io/ios/app/id1532691741)

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

**In-app purchases:** none


### 해외건설통합정보서비스

[App page](https://appshunter.io/ios/app/id1663149539)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 레일휘슬 free?

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

### Is 해외건설통합정보서비스 free?

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

### Do 레일휘슬 or 해외건설통합정보서비스 have ads?

Neither 레일휘슬 nor 해외건설통합정보서비스 shows ads.

### Which is updated more often, 레일휘슬 or 해외건설통합정보서비스?

레일휘슬 ships an update every 8 months, and 해외건설통합정보서비스 every 20 months. Most recently, 레일휘슬 was updated on September 23, 2026 and 해외건설통합정보서비스 on October 1, 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.*