# 공사알리미 vs CaasWorks

The clearest difference is update cadence: CaasWorks at every 3 weeks against 공사알리미's every 52 months. 공사알리미's advantage is iOS requirement (11.0 vs 15.6). 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, CaasWorks every 3 weeks. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | 공사알리미 | CaasWorks |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 52 months | **Every 3 weeks** |
| Size | 4 MB | 40 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [donghyun KIM](https://appshunter.io/developer/1246064897) | [Jongmin Kim](https://appshunter.io/developer/1131462450) |

## What reviewers say

### 공사알리미

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

**Features:** macOS Compatibility

**In-app purchases:** none


### CaasWorks

[App page](https://appshunter.io/ios/app/caasworks-contech/id1615681754)

**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 CaasWorks free?

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

### Do 공사알리미 or CaasWorks have ads?

Neither 공사알리미 nor CaasWorks shows ads.

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

공사알리미 ships an update every 52 months, and CaasWorks every 3 weeks. Most recently, 공사알리미 was updated on November 2, 2026 and CaasWorks on November 7, 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.*