# K vs RDTap

The clearest difference is review sentiment: K at 100% against RDTap's 50%. K also leads on iOS requirement (13.4 vs 15.0). RDTap's advantage is update cadence (fortnightly vs every 2 months). 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 ships an update every 2 months, RDTap fortnightly. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | K | RDTap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/k-array-connect/id1573002745/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 22 MB | 36 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [K-array s.u.r.l.](https://appshunter.io/developer/510319211) | [RCF spa](https://appshunter.io/developer/1053268033) |

## What reviewers say

### 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


### RDTap

[App page](https://appshunter.io/ios/app/rdtap/id6739501408)

Control and configure SUB 90XX series subwoofers with access to internal parameters. Offers professionally tuned presets for seamless integration with top speakers and supports rapid setup for ground stacking or sub cluster configurations.

**Highlights:** Access internal subwoofer parameters, Advanced Crossover Engine (ACE) presets, Professionally tuned level and phase matching, Ground stacking and sub cluster configuration, Rapid setup for speaker designs

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is K free?

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

### Is RDTap free?

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

### Do K or RDTap have ads?

Neither K nor RDTap shows ads.

### Which is updated more often, K or RDTap?

K ships an update every 2 months, and RDTap fortnightly. Most recently, K was updated on October 2, 2026 and RDTap on October 4, 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.*