# ESS 통합관리시스템 vs 그린플래너

The clearest difference is update cadence: 그린플래너 at fortnightly against ESS 통합관리시스템's every 8 months. ESS 통합관리시스템's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.6). On price, ads and in-app purchases there is nothing between them.

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

ESS 통합관리시스템 ships an update every 8 months, 그린플래너 fortnightly. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | ESS 통합관리시스템 | 그린플래너 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Size | 28 MB | 108 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [한국전기안전공사](https://appshunter.io/developer/1433675471) | [Nine Watt Co., Ltd](https://appshunter.io/developer/1666161592) |

## What reviewers say

### ESS 통합관리시스템

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 그린플래너

[App page](https://appshunter.io/ios/app/id6480395768)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ESS 통합관리시스템 free?

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

### Is 그린플래너 free?

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

### Do ESS 통합관리시스템 or 그린플래너 have ads?

Neither ESS 통합관리시스템 nor 그린플래너 shows ads.

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

ESS 통합관리시스템 ships an update every 8 months, and 그린플래너 fortnightly. Most recently, ESS 통합관리시스템 was updated on September 17, 2026 and 그린플래너 on September 21, 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.*