VitOS Manager vs iYoung MkIV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VitOS Manager
This utility app helps manage a specialized operating system for audio servers. It allows for device discovery, software installation, network configuration, and music import from storage devices.
- Discover Rhein Z1 devices
- Install Roon Server
- Configure network settings
- Import music from USB
- Manage VitOS operating system
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VitOS Manager, developed by Thunder Data Co. Ltd., is a tool for managing a state-of-the-art operating system named VitOS for Silent Angel products. You can discover Rhein Z1 device in the same network, install Roon Server, configure network settings, import music from USB disk, ..., and so on. Rhein Z1 is a sound quality first music server. Rhein Z1 not only has the chassis made by CNC processed aerospace-grade aluminum alloy, but also equipped with ultra low electrical noise SSD. Except for high quality hardware, it also equipped with VitOS, which is designed for music server. VitOS is a real-time OS, which enables music server to provide better performance to achieve lower and more stable response latency and extreme sound quality as a result.
iYoung MkIV
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We are pleased to announce the release of the Young MkIV Remote App for iOS! Thanks to the simple interface and intuitive layout you can control the Young MkIV Dac M2Tech. The Young MkIV gives you total control of the music flowing from your sources to the amplifier and then to the speakers. With a wealth of input channels and extensive control options, you have always full command on your audio system, with the greatest confidence that the quality of the original music material is delivered to the speakers without any detriment. Whether your source is a computer, a smartphone, a DVD player or a turntable, the Young MkIV delivers a crisp and alive analog sound at its outputs, to drive any amplifier at best. You control it by the front panel encoder, using the remote control or by your Apple smartphone via the same wireless connection which allows you to stream audio. Streaming lovers will enjoy the high quality ensured by MQA©, while smartphone users will take advantage of aptX©. We hope that you’ll like and love your M2Tech products the way we do!
Screenshots
Verdict
The clearest difference is update cadence: iYoung MkIV at every 2 days against VitOS Manager's every 3 months. iYoung MkIV also leads on iOS requirement (9.3 vs 12.0). On price, ads, 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.
VitOS Manager ships an update every 3 months, iYoung MkIV every 2 days. The most recent releases landed on October 4, 2026 and October 27, 2026 respectively.
| Parameter | VitOS Manager | iYoung MkIV |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 8 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | thunderdata | Fabio Elia |
In-app purchases
VitOS Manager
No in-app purchases
iYoung MkIV
No in-app purchases









