# iTruss vs ArrayCalc Viewer

The clearest difference is update cadence: ArrayCalc Viewer at every 4 months against iTruss's every 23 months. iTruss's advantage is iOS requirement (11.0 vs 16). On price, rating, ratings volume and in-app purchases there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.1 for iTruss against 4.1 for ArrayCalc Viewer. Both are backed by a comparable volume of ratings — 15 and 8 respectively.

iTruss ships an update every 23 months, ArrayCalc Viewer every 4 months. The most recent releases landed on September 15, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | iTruss | ArrayCalc Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (15 ratings)](https://appshunter.io/ios/app/itruss/id363376468/reviews) | **[4.1 (8 ratings)](https://appshunter.io/ios/app/arraycalc-viewer/id1181023656/reviews)** |
| Number of ratings | **15** | 8 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 23 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 70 MB | 40 MB |
| Requires iOS | **11.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xtreme Structures & Fabrication LLC](https://appshunter.io/developer/363376471) | [d&b audiotechnik GmbH & Co. KG](https://appshunter.io/developer/1174327968) |

## What reviewers say

### iTruss

[App page](https://appshunter.io/ios/app/itruss/id363376468)

Calculate structural loads, spans, and truss requirements for construction projects directly from your iPhone. This tool simplifies complex engineering calculations for field use.

**Highlights:** Load calculation, Span determination, Truss analysis, Field use optimization, Engineering 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 iTruss free?

iTruss 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, iTruss or ArrayCalc Viewer?

ArrayCalc Viewer is rated higher. iTruss averages 4.1 out of 5 from 15 ratings, while ArrayCalc Viewer averages 4.1 from 8 ratings.

### Which is updated more often, iTruss or ArrayCalc Viewer?

iTruss ships an update every 23 months, and ArrayCalc Viewer every 4 months. Most recently, iTruss was updated on September 15, 2026 and ArrayCalc Viewer on September 19, 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.*