# ETI Commander vs MK Button

The clearest difference is update cadence: ETI Commander at every 2 months against MK Button's every 11 months. 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.

ETI Commander ships an update every 2 months, MK Button every 11 months. The most recent releases landed on June 22, 2026 and March 11, 2026 respectively.

## The numbers

| Metric | ETI Commander | MK Button |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/eti-commander/id1423110846/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 11 months |
| Monetization | Free | — |
| Size | 10 MB | 18 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Electronic Technology Inc.](https://appshunter.io/developer/1423110845) | [Moko Technology Ltd](https://appshunter.io/developer/1242868347) |

## What reviewers say

### ETI Commander

[App page](https://appshunter.io/ios/app/eti-commander/id1423110846)

This app allows users to program and monitor ETI MNPR relays using a Bluetooth optical head. It facilitates troubleshooting of network protector and relay operations. Requires specific ETI hardware for functionality.

**Highlights:** Program MNPR relays, Monitor MNPR relays, Bluetooth optical head connectivity, Troubleshoot relay operation, Troubleshoot network protector operation

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

**In-app purchases:** none


### MK Button

[App page](https://appshunter.io/ios/app/mk-button/id1630904337)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ETI Commander free?

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

### Is MK Button free?

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

### Do ETI Commander or MK Button have ads?

Neither ETI Commander nor MK Button shows ads.

### Which is updated more often, ETI Commander or MK Button?

ETI Commander ships an update every 2 months, and MK Button every 11 months. Most recently, ETI Commander was updated on June 22, 2026 and MK Button on March 11, 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.*