# 4K AVR-Key Total Control

> Control HDfury AVR-Key for HDMI audio integration with older sound systems. (iPhone/iPad app by Affyy.)

- Source: https://appshunter.io/ios/app/4k-avr-key-total-control/id1319634357 (this page in markdown: same URL + `.md`)
- Developer: [Affyy](https://appshunter.io/developer/1093477630)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.2 · 2 MB
- Languages: American English
- Released: 2017-12-01
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/4k-avr-key-total-control/id1319634357/reviews.md

## What is 4K AVR?

This APP request Bluetooth authorization and SD card/file writing permission.
It will allow you to control and operate your HDfury AVR-Key.
 
GoBlue is mandatory to use this APP.
AVR-Key is the ultimate add-on for your AVR!
If you already have that perfect sound system with multiple HP all wired and you are trying to get Full HDMI sound to it from modern UHD and 4K HDR, HLG or DV sources⋯ Look no further, we have the straight forward answer to integrate any first generation AVR in second generation HDMI and HDCP setup.
No matter the content played from recent sources, the video resolution, format or the refresh rate. With AVR Key you will always get a 720p or 1080p (selectable) Full HDMI audio stream to feed your older yet perfectly working AVR.
Hook the Key to your older AVR and turn it into an Ultra AVR now capable of accepting Full HDMI Audio from any modern 4K, UHD, HDCP2.2, DV, HLG, HDR10+ sources while your display is fed with the best possible video signal.

## Key features

- Control HDfury AVR-Key
- Full HDMI audio stream
- Integrate older AVRs
- Support for 4K HDR sources
- Selectable 720p or 1080p output

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/4k-avr-key-total-control/id1319634357/reviews.md

### 5/5 — 4kHDR & Dolby Vision split to separate devices for Dolby Atmos/DTSX.

*2019-08-10*

Great tool. Must have. Read directions. Works perfectly. Download software to pc. Update firmware. Then select interface. DOLBY VISION MUST USE MIDDLE OPTION ON THE UNIT.

## Frequently asked questions about 4K AVR

### What is 4K AVR-Key Total Control used for?

4K AVR-Key Total Control is used to manage and operate the HDfury AVR-Key device. This allows users to get full HDMI audio from modern 4K sources to their older AVR systems.

### Does 4K AVR-Key Total Control require any other hardware?

Yes, the description states that GoBlue is mandatory to use this app. The app is designed to work with the HDfury AVR-Key device itself.

### What kind of audio formats does 4K AVR-Key Total Control support?

The app enables older AVRs to receive a 720p or 1080p Full HDMI audio stream. This is compatible with modern UHD and 4K HDR, HLG, or DV sources.

### Is 4K AVR-Key Total Control compatible with all devices?

The app is supported on iPhone, iPad, and iPod. It requires Bluetooth authorization and SD card/file writing permissions.

### How often is 4K AVR-Key Total Control updated?

The latest version of 4K AVR-Key Total Control is 2.0.0, which was last updated on June 1, 2022. The app was initially released on December 1, 2017.

### What is the age rating for 4K AVR-Key Total Control?

4K AVR-Key Total Control has an age rating of 4+. This indicates it is suitable for a wide range of users.

### Does 4K AVR-Key Total Control have ads?

No, the provided data indicates that 4K AVR-Key Total Control does not contain advertisements.

### What is the user sentiment for 4K AVR-Key Total Control?

The app has a perfect rating of 5.0 stars from 1 rating, suggesting positive user sentiment based on available data.

## Version history (last 3 releases)

### 2.0.0 — 2022-06-01

1. Update to iOS15.2
2. Increase operational stability.

### 1.1.0 — 2018-06-12

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

1) Display GoBlue information if un-connect.
2) Links APP and GoBlue models.
3) Please update GoBlue v1.40 up.

### 1.0.0 — 2017-12-01

No release notes.

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## More apps by Affyy

- [4K Integral Total Control](https://appshunter.io/ios/app/4k-integral-total-control/id1107558893)
- [DrPSU HDFury](https://appshunter.io/ios/app/drpsu-hdfury/id1192998663)
- [4K Linker Total Control](https://appshunter.io/ios/app/4k-linker-total-control/id1193059228)
- [4K Integral Total Control Early Version](https://appshunter.io/ios/app/4k-integral-total-control-early-version/id1193913188)
- [4K Vertex Total Control](https://appshunter.io/ios/app/4k-vertex-total-control/id1319623333)

All apps by Affyy: https://appshunter.io/developer/1093477630

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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 2026-06-01.*