# 공사알리미 vs X

The clearest difference is review sentiment: 공사알리미 at 50% against X's 0%. 공사알리미 also leads on iOS requirement (11.0 vs 15.0). X's advantage is update cadence (every 9 days vs every 52 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.

공사알리미 ships an update every 52 months, X every 9 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 공사알리미 | X |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 52 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 4 MB | 28 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [donghyun KIM](https://appshunter.io/developer/1246064897) | [Xinternet Info](https://appshunter.io/developer/1631544197) |

## What reviewers say

### 공사알리미

[App page](https://appshunter.io/ios/app/id1246064898)

**Features:** macOS Compatibility

**In-app purchases:** none


### X

[App page](https://appshunter.io/ios/app/x-erp/id6759028341)

This construction site management app facilitates rapid communication between managers and workers. It allows for efficient safety announcements, on-site check-ins, and access to personal work history and contract details.

**Highlights:** Real-time safety announcements, On-site check-in/out, Monthly work history calendar, View employment contracts, Personal information update requests

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

**In-app purchases:** none


## Frequently asked questions

### Is 공사알리미 free?

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

### Is X free?

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

### Do 공사알리미 or X have ads?

Neither 공사알리미 nor X shows ads.

### Which is updated more often, 공사알리미 or X?

공사알리미 ships an update every 52 months, and X every 9 days. Most recently, 공사알리미 was updated on November 2, 2026 and X on November 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.*