# Smart ON Server vs ESS 통합관리시스템

The clearest difference is update cadence: Smart ON Server at fortnightly against ESS 통합관리시스템's every 15 months. Smart ON Server also leads on iOS requirement (13.0 vs 15.0). 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.

Smart ON Server ships an update fortnightly, ESS 통합관리시스템 every 15 months. The most recent releases landed on October 25, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Smart ON Server | ESS 통합관리시스템 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 15 months |
| Size | 10 MB | 15 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BeomHo Kang](https://appshunter.io/developer/1480618470) | [한국전기안전공사](https://appshunter.io/developer/1433675471) |

## What reviewers say

### Smart ON Server

[App page](https://appshunter.io/ios/app/smart-on-server/id1480618471)

**Features:** macOS Compatibility

**In-app purchases:** none


### ESS 통합관리시스템

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart ON Server free?

Smart ON Server is free to download, with no in-app purchases.

### Is ESS 통합관리시스템 free?

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

### Do Smart ON Server or ESS 통합관리시스템 have ads?

Neither Smart ON Server nor ESS 통합관리시스템 shows ads.

### Which is updated more often, Smart ON Server or ESS 통합관리시스템?

Smart ON Server ships an update fortnightly, and ESS 통합관리시스템 every 15 months. Most recently, Smart ON Server was updated on October 25, 2026 and ESS 통합관리시스템 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.*