# dB Calculator — user reviews

> 7 indexed App Store user reviews of dB Calculator by Rohde & Schwarz GmbH & Co. KG, rated 4.30/5 from 3 ratings.

- Source: https://appshunter.io/ios/app/db-calculator/id489100786/reviews
- App overview in markdown: https://appshunter.io/ios/app/db-calculator/id489100786.md
- Rating breakdown: 5★ 1 · 4★ 2 · 3★ 0 · 2★ 0 · 1★ 0

## Most critical reviews (7 lowest-rated)

### 1/5 — Incorrect Calculations!

*2013-03-21, version 1.0.5*

Overall the interface is not very user friendly for such a simple app and the unit Convertor does not calculate properly from dBm to Watts.

### 1/5 — Complicated

*2012-05-29, version 1.0.5*

Complicated and ugly

### 1/5 — Broken

*2012-01-26, version 1.02*

Beautiful interface but does not function correctly, which makes it not worth the effort.  
If it actually worked it would be five stars.

### 3/5 — Great features, 1 big bug

*2012-01-23, version 1.02*

This is exactly the calculator I was looking for. However I believe there's a bug in the unit converter, you can't change the buttons for other units than the defaults. At least it acts that way. Even so, the defaults are handy in the meantime. Beautifully thought out feature set. Thanks!

### 4/5 — Wrong calc

*2013-03-17, version 1.0.5*

The dB micro volt calculations are incorrect on this app. Everything else seems fine but it doesn't matter which you select, it alway converts to dBV.  This should be an easy fix R&S.

### 5/5 — The app you’ve been looking for

*2024-12-10, version 2.3*

I was looking for a unit converter, and stumbled on to this awesome app.  Are you wondering what your equivalent wattage would be with your 1000 W +7.5 dB?  Type it in exactly that way, and done!  

It’s truly an awesome app that will save you loads of time.

### 5/5 — Great app

*2014-01-02, version 1.0.8*

Useful converter functions, saves me lugging more test equipment to site.

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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 2026-06-05.*