# RK-004

> Manage Retrokits RK-004 device settings via audio cable connection. (iPhone/iPad app by RGP.)

- Source: https://appshunter.io/ios/app/rk-004/id1184337550 (this page in markdown: same URL + `.md`)
- Developer: [RGP](https://appshunter.io/developer/437476213)
- Category: Utilities, Music
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 2 MB
- Languages: American English
- Released: 2017-05-25
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rk-004/id1184337550/reviews.md

## What is RK?

Use this application to manage the settings of your Retrokits RK-004. Just connect an audio cable between the headphone output of your iOS device and the RK-004's sync input. Now you're ready to go!

## Key features

- Manage RK-004 device settings
- Connect via audio cable
- iOS device compatibility
- Simple interface

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/rk-004/id1184337550/reviews.md

### 5/5 — Please support this awesome company!

*2024-01-14*

What a great company & products! Highly recommended!

## Frequently asked questions about RK

### How do I connect RK-004 to my iOS device?

Connect an audio cable from your iOS device's headphone output to the RK-004's sync input. This connection allows the app to communicate with the device.

### What devices does RK-004 support?

RK-004 is compatible with iPhone, iPad, and iPod devices. It requires an iOS operating system.

### Is RK-004 free to use?

Yes, RK-004 is available for free. There are no in-app purchases or advertisements associated with this application.

### How often is RK-004 updated?

The latest version, 1.06, was released on January 20, 2022. Updates are infrequent, with the last update being over a year ago.

### What is the age rating for RK-004?

RK-004 has an age rating of 4+. This indicates it is suitable for users of all ages.

### What is the user rating for RK-004?

RK-004 has a high user rating of 5.0 stars based on 4 reviews, suggesting a very positive user experience.

### Who developed RK-004?

RK-004 was developed by RGP. The developer has released this utility application for managing Retrokits hardware.

## Version history (last 2 releases)

### 1.06 — 2022-01-20

A new export for the new iOS

### 1.0 — 2017-05-25

This app has been updated by Apple to display the Apple Watch app icon.

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## More apps by RGP

- [RK-006](https://appshunter.io/ios/app/rk-006/id1516602717)
- [RK-601](https://appshunter.io/ios/app/rk-601/id6449847140)

All apps by RGP: https://appshunter.io/developer/437476213

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*