# QSpec — user reviews

> 2 indexed App Store user reviews of QSpec by Linde GmbH, rated 4.00/5 from 6 ratings.

- Source: https://appshunter.io/ios/app/qspec/id1155111447/reviews
- App overview in markdown: https://appshunter.io/ios/app/qspec/id1155111447.md
- Rating breakdown: 5★ 4 · 4★ 0 · 3★ 0 · 2★ 2 · 1★ 0

## Most critical reviews (2 lowest-rated)

### 2/5 — Camera won’t scan at all

*2025-09-17*

Camera won’t scan at all and won’t focus on the qr code when it’s close, I tried it on the qr code on the cylinder and the one printed on the physical cert. Qr code has to be about 1.5 ft away to be in focus but won’t scan.

 I tried searching for it manually, serial number being the cylinder number and document number from the DocNumber given on the cert and could not find the cylinder.

Turns out Document number is the Lot number, NOT THE DOCUMENT NUMBER on the cert. 
 
So manual entry does work but is tedious.

### 2/5 — Was a very good tool

*2025-09-04*

Camera will not scan QR codes after upgrading to iphone 16

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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.*