Smart Sonix vs K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Sonix
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.
- 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
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The Smartsonix App turns your smart phone or tablet into a remote control to enjoy your music everywhere in your home. FREELY ENJOY HIGH QUALITY MUSIC Enjoy music in every room of your home in HiFi sound - no matter when you are cooking, reading or bathing. Make your home a dynamic and awesome world. ROCK YOUR HOME WITH ONE APP Create the desired atmosphere in different rooms by simple steps. Play different songs in separate rooms or even same songs in multiple rooms simultaneously. EXPAND TO A HOME SYSTEM Simply settings to create a multi-room music system - easily to add or remove devices. Control your home audio system from the powerful app.
K
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.
- 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
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K-array Connect is the mobile app providing direct managing and control over K-array active subwoofers Thunder-KS and Kommander-KA amplifiers with DSP. Use your mobile device (smartphone or tablet) and connect it Wi-Fi to K-array KS and KA amplifiers with DSP: launch K-array Connect to manage the output configuration, load the loudspeakers presets, design the signal routing, control audio level and monitor the system performance.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Smart Sonix | K |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 41.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 158 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Lumi Legend Corporation | K-array s.u.r.l. |
Customer experience
Smart Sonix
K
In-app purchases
Smart Sonix
No in-app purchases
K
No in-app purchases
