# ESS 통합관리시스템 vs 전기공사

The clearest difference is in-app purchases: ESS 통합관리시스템 at none against 전기공사's 2. ESS 통합관리시스템 also leads on iOS requirement (12.0 vs 15.0). 전기공사's advantage is update cadence (weekly vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. 전기공사 sells 2 in-app purchases, starting at $9.99 per month. ESS 통합관리시스템 asks for nothing beyond the download.

ESS 통합관리시스템 ships an update every 8 months, 전기공사 weekly. The most recent releases landed on September 17, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | ESS 통합관리시스템 | 전기공사 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Size | 28 MB | 110 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [한국전기안전공사](https://appshunter.io/developer/1433675471) | [Hae Seong Kang](https://appshunter.io/developer/1711528778) |

## What reviewers say

### ESS 통합관리시스템

[App page](https://appshunter.io/ios/app/ess/id6446299030)

**Features:** macOS Compatibility

**In-app purchases:** none


### 전기공사

[App page](https://appshunter.io/ios/app/id6469094425)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 정기결제 | $9.99 | per month |
| 한달결제 | $7.99 | one-time |


## Frequently asked questions

### Is ESS 통합관리시스템 free?

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

### Is 전기공사 free?

전기공사 is free to download, with in-app purchases available.

### Do ESS 통합관리시스템 or 전기공사 have ads?

Neither ESS 통합관리시스템 nor 전기공사 shows ads.

### Which is updated more often, ESS 통합관리시스템 or 전기공사?

ESS 통합관리시스템 ships an update every 8 months, and 전기공사 weekly. Most recently, ESS 통합관리시스템 was updated on September 17, 2026 and 전기공사 on September 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*