# Hardness Converter — user reviews

> 9 indexed App Store user reviews of Hardness Converter by Buehler LTD., rated 5.00/5 from 4 ratings.

- Source: https://appshunter.io/ios/app/hardness-converter/id371816611/reviews
- App overview in markdown: https://appshunter.io/ios/app/hardness-converter/id371816611.md
- Rating breakdown: 5★ 4 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (9 lowest-rated)

### 1/5 — User

*2010-07-19*

I was disappointed because the conversions did not match the values of the Wilson chart.

### 4/5 — Nice app

*2011-04-01*

Installed the app this morning and have already been using it often. Very handy.

### 5/5 — Fantastic app

*2017-09-15*

Thank you for updating this app, I was afraid it may be scrapped for iOS 11. I use this app all the time, it's simple, straightforward & fast.

### 5/5 — Never Use a Wall Chart Again

*2014-01-15*

This app has everything most engineers could want regarding hardness conversion. The built-in roundness correction is also a nice touch. The only deficiency I can see is that the Knoop and Vickers hardnesses are not explicitly stated as macro- or microhardness, although that is the case for ASTM A370 and I can't be too mad about that.

### 5/5 — Engg consultant

*2011-06-20*

Great work! Really nice and handy app.

### 5/5 — Great tool!

*2010-05-27*

Finally...

### 5/5 — Very Handy!

*2010-05-25*

Nice to have conversions quickly and easily available.

### 5/5 — Great app!

*2010-05-24*

Very useful conversion tool

### 5/5 — AWESOME !!!

*2010-05-20*

This is the best damn app ever!! Now I just need to start writting code for hardness systems. Nice work !!

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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.*