# Smart Sonix vs K

The clearest difference is review sentiment: K at 100% against Smart Sonix's 42%. K also leads on rating (5.0 vs 2.7) and update cadence (every 2 months vs every 6 months). Smart Sonix's advantage is ratings volume (7 vs 1) and iOS requirement (10.0 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 2.7. That said, the two scores are not equally well evidenced: Smart Sonix has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 42% of Smart Sonix's written reviews are positive against 100% of K's.

Smart Sonix ships an update every 6 months, K every 2 months. The most recent releases landed on June 11, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Smart Sonix | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (7 ratings)](https://appshunter.io/ios/app/smart-sonix/id977078503/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/k-array-connect/id1573002745/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 41.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 158 MB | 22 MB |
| Requires iOS | **10.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lumi Legend Corporation](https://appshunter.io/developer/977078502) | [K-array s.u.r.l.](https://appshunter.io/developer/510319211) |

## What reviewers say

### Smart Sonix

[App page](https://appshunter.io/ios/app/smart-sonix/id977078503)

Transform your smartphone or tablet into a multi-room music remote. Stream high-quality audio throughout your home, creating custom atmospheres in different rooms or playing the same music everywhere simultaneously.

**Highlights:** Smartphone/tablet remote control, High-quality HiFi sound, Multi-room music system, Play different songs in separate rooms, Play same songs in multiple rooms, Add/remove devices easily

**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 Smart Sonix free?

Smart Sonix 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, Smart Sonix or K?

K is rated higher. Smart Sonix averages 2.7 out of 5 from 7 ratings, while K averages 5.0 from 1 ratings.

### Do Smart Sonix or K have ads?

Neither Smart Sonix nor K shows ads.

### Which is updated more often, Smart Sonix or K?

Smart Sonix ships an update every 6 months, and K every 2 months. Most recently, Smart Sonix was updated on June 11, 2026 and K on June 1, 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.*