# HRVL - Klaus Union — AR View of HRVL

> AR View of HRVL (iPhone/iPad app by Klaus Union GmbH & Co KG.)

- Source: https://appshunter.io/ios/app/hrvl-klaus-union/id1402092745 (this page in markdown: same URL + `.md`)
- Developer: [Klaus Union GmbH & Co KG](https://appshunter.io/developer/1402081482)
- Category: Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 10.0 · 73 MB
- Languages: American English
- Released: 2018-08-09
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/hrvl-klaus-union/id1402092745/reviews.md

## What is HRVL?

Augmented Reality View of Klaus Union High Pressure Control Valve

In order to use this app, you need to download and print a QR-code on a paper. Then you need to focus the camera view of the app onto this QR-code to view augmented reality features.
You can download the QR-code here: http://www.klaus-union.de/Klaus-Union-AR-HRVL.1659.0.html


## Version history (last 3 releases)

### 1.2.1 — 2022-04-05

Bug fixing

### 1.2 — 2018-09-27

iOS 12 updates and error corrections.

### 1.1 — 2018-08-07

No release notes.

## More apps by Klaus Union GmbH & Co KG

- [SLM DSP2C - Klaus Union](https://appshunter.io/ios/app/slm-dsp2c-klaus-union/id1402081483)
- [SLM NV - Klaus Union](https://appshunter.io/ios/app/slm-nv-klaus-union/id1402088806)

All apps by Klaus Union GmbH & Co KG: https://appshunter.io/developer/1402081482

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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 2026-05-19.*