# dB Calculator vs ArrayCalc Viewer

The clearest difference is rating: dB Calculator at 4.3 against ArrayCalc Viewer's 4.1. dB Calculator also leads on iOS requirement (10.0 vs 16). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

dB Calculator holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 3 and 8 respectively. Written reviews complicate that: 43% of dB Calculator's written reviews are positive against 50% of ArrayCalc Viewer's, so the app with the better star average is not the one people write more warmly about.

dB Calculator ships an update every 5 months, ArrayCalc Viewer every 4 months. The most recent releases landed on September 11, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | dB Calculator | ArrayCalc Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/db-calculator/id489100786/reviews)** | [4.1 (8 ratings)](https://appshunter.io/ios/app/arraycalc-viewer/id1181023656/reviews) |
| Number of ratings | 3 | **8** |
| Positive reviews | 42.9% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 37 MB | 40 MB |
| Requires iOS | **10.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rohde & Schwarz GmbH & Co. KG](https://appshunter.io/developer/364229795) | [d&b audiotechnik GmbH & Co. KG](https://appshunter.io/developer/1174327968) |

## What reviewers say

### dB Calculator

[App page](https://appshunter.io/ios/app/db-calculator/id489100786)

This app provides five distinct calculation tools for power levels, voltage, and signal reflection. It helps convert between various units like dBm, watt, and dB, and calculate VSWR and reflection coefficients.

**Highlights:** dBm and watt power level calculations, Correlated and uncorrelated voltage calculations, Unit conversion for dBm, dBW, mW, W, mV, V, dBV, dBµV, dBu, Linear power/voltage ratios to dB conversion, VSWR, reflection coefficient, and mismatch loss calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### ArrayCalc Viewer

[App page](https://appshunter.io/ios/app/arraycalc-viewer/id1181023656)

Access all project data for rigging d&b audiotechnik loudspeaker systems on your iOS device. Share system designs, calculations, and optimizations seamlessly. This app offers a paperless and efficient way to keep all relevant rigging, setup, and system information readily available.

**Highlights:** Access rigging and system information, Share project data via email, AirDrop, Dropbox, iTunes, View system designs and calculations, Paperless and efficient operation, User-friendly interface

**In-app purchases:** none


## Frequently asked questions

### Is dB Calculator free?

dB Calculator is free to download, with no in-app purchases.

### Is ArrayCalc Viewer free?

ArrayCalc Viewer is free to download, with no in-app purchases.

### Which has better reviews, dB Calculator or ArrayCalc Viewer?

dB Calculator is rated higher. dB Calculator averages 4.3 out of 5 from 3 ratings, while ArrayCalc Viewer averages 4.1 from 8 ratings.

### Do dB Calculator or ArrayCalc Viewer have ads?

Neither dB Calculator nor ArrayCalc Viewer shows ads.

### Which is updated more often, dB Calculator or ArrayCalc Viewer?

dB Calculator ships an update every 5 months, and ArrayCalc Viewer every 4 months. Most recently, dB Calculator was updated on September 11, 2026 and ArrayCalc Viewer on June 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*