# MSE OS vs K

The clearest difference is review sentiment: K at 100% against MSE OS's 0%. K also leads on rating (5.0 vs 1.8) and update cadence (every 2 months vs every 29 months). MSE OS's advantage is ratings volume (5 vs 1) and iOS requirement (9.0 vs 13.4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

K holds the better App Store score, 5.0 against 1.8. That said, the two scores are not equally well evidenced: MSE OS has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of MSE OS's written reviews are positive against 100% of K's.

MSE OS ships an update every 29 months, K every 2 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | MSE OS | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (5 ratings)](https://appshunter.io/ios/app/mse-os-app/id1398770138/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/k-array-connect/id1573002745/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 27 MB | 22 MB |
| Requires iOS | **9.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MS Electronics LLC](https://appshunter.io/developer/1398645873) | [K-array s.u.r.l.](https://appshunter.io/developer/510319211) |

## What reviewers say

### MSE OS

[App page](https://appshunter.io/ios/app/mse-os-app/id1398770138)

This application allows users to control the Phasetech OS440 Amplifier. It provides a direct interface for managing amplifier settings and functions.

**Highlights:** Phasetech OS440 Amplifier control, Direct interface, Settings management, Function control

**Features:** macOS Compatibility

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-array-connect/id1573002745)

Control and manage K-array active subwoofers and amplifiers directly from your mobile device. Adjust output configurations, load presets, route signals, and monitor system performance via Wi-Fi connection.

**Highlights:** Direct management of K-array active subwoofers, Control Kommander-KA amplifiers with DSP, Wi-Fi connectivity to amplifiers, Manage output configuration, Load loudspeaker presets, Design signal routing, Control audio level, Monitor system performance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MSE OS free?

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

### Is K free?

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

### Which has better reviews, MSE OS or K?

K is rated higher. MSE OS averages 1.8 out of 5 from 5 ratings, while K averages 5.0 from 1 ratings.

### Do MSE OS or K have ads?

Neither MSE OS nor K shows ads.

### Which is updated more often, MSE OS or K?

MSE OS ships an update every 29 months, and K every 2 months. Most recently, MSE OS was updated on October 25, 2026 and K on October 18, 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.*