VSSL Legacy vs K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VSSL Legacy
This app allows you to set up and control your home audio system from a single location. Stream music from your favorite apps directly to any room, with support for Airplay, Chromecast, and Spotify Connect.
- Home audio system setup
- Multiroom audio control
- Native streaming (Airplay, Chromecast, Spotify Connect)
- Integrates with Google Home
- Use favorite music apps
- Party Zone setup
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VSSL is a home music system that anyone can use. You have direct control of VSSL through your favorite music apps. The VSSL app is for setting up and controlling of the audio of your home in one place. NATIVE STREAMING™ Each zone of the VSSL system has Airplay, Chromecast Built-in, and Spotify Connect to ensure you can listen to any music, from any device, in any room, whenever you want. Integrates with Google Home for voice controlled audio. BEAUTIFUL OUT-OF-SIGHT SOUND VSSL is designed to work with in-ceiling or other architectural speakers, keeping your speakers out-of-sight with the focus on the design and architecture of your home. USE YOUR FAVORITE APPS Utilize all the features of your favorite music app to find and discover new music, then play directly to VSSL. Go straight from music on your headphones to music in your ceiling. EASY MULTIROOM Set up Party Zones and Google Home groups so you can play music throughout your home in one tap straight from your music app. ANYONE CAN USE Anyone can access VSSL. Just log on to the same WiFi as your VSSL system, open your favorite music app, and play.
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 rating: K at 5.0 against VSSL Legacy's 4.5. K also leads on ads (none vs shown) and review sentiment (100% vs 79%). VSSL Legacy's advantage is ratings volume (28 vs 1). On price, update cadence, in-app purchases and device support 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 4.5. That said, the two scores are not equally well evidenced: VSSL Legacy has 28 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 79% of VSSL Legacy's written reviews are positive against 100% of K's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.
| Parameter | VSSL Legacy | K |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (28 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 78.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 28 — better | 1 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.1 | 13.4 — better |
| Further details — not scored | ||
| Size | 35 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | VSSL | K-array s.u.r.l. |
Customer experience
VSSL Legacy
K
In-app purchases
VSSL Legacy
No in-app purchases
K
No in-app purchases









