# HMI Client vs KOYOE

The clearest difference is iOS requirement: HMI Client at 9.0 against KOYOE's 15.6. On price, update cadence, 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.

HMI Client ships an update every 8 days, KOYOE fortnightly. The most recent releases landed on October 3, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | HMI Client | KOYOE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | — | Free |
| Size | 3 MB | 47 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Samkoon Automation Technology Shenzhen Co. Ltd](https://appshunter.io/developer/1084922917) | [Jiangsu Koyoe Energy Technology Co.,Ltd](https://appshunter.io/developer/1501799525) |

## What reviewers say

### HMI Client

[App page](https://appshunter.io/ios/app/hmi-client/id1084922918)

**Features:** macOS Compatibility

**In-app purchases:** none


### KOYOE

[App page](https://appshunter.io/ios/app/koyoe/id1501799586)

This platform allows users to centrally monitor, analyze, and display data from power stations. It provides insights into operational status, energy efficiency, and revenue estimation, offering a scientific basis for economic operations and power station design. Real-time communication aids in quick fault diagnosis for safe operation.

**Highlights:** Centralized monitoring of power station data, Analysis of energy efficiency and operation status, Revenue estimation for power stations, Real-time fault information processing, Technical support for safe power station operation

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HMI Client free?

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

### Is KOYOE free?

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

### Do HMI Client or KOYOE have ads?

Neither HMI Client nor KOYOE shows ads.

### Which is updated more often, HMI Client or KOYOE?

HMI Client ships an update every 8 days, and KOYOE fortnightly. Most recently, HMI Client was updated on October 3, 2026 and KOYOE on September 28, 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.*