# ArrayCalc Viewer vs StageDocs

The clearest difference is in-app purchases: ArrayCalc Viewer at none against StageDocs's 2. StageDocs's advantage is update cadence (every 3 weeks vs every 4 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. StageDocs sells 2 in-app purchases, starting at $3.99 per month. ArrayCalc Viewer asks for nothing beyond the download.

ArrayCalc Viewer ships an update every 4 months, StageDocs every 3 weeks. The most recent releases landed on October 7, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ArrayCalc Viewer | StageDocs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (8 ratings)](https://appshunter.io/ios/app/arraycalc-viewer/id1181023656/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 40 MB | 9 MB |
| Requires iOS | 16 | **15** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [d&b audiotechnik GmbH & Co. KG](https://appshunter.io/developer/1174327968) | [Jameo UG (haftungsbeschraenkt)](https://appshunter.io/developer/1056639330) |

## What reviewers say

### 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


### StageDocs

[App page](https://appshunter.io/ios/app/stagedocs/id6737455764)

Calculate bridle and beam properties for rigging applications. Features include interactive geometry adjustment, precise input, and load verification for various truss types. Generate detailed calculation protocols.

**Highlights:** Simple and sloped bridle calculations, Interactive bridle geometry adjustment, Precise value input for positioning, Real-time beam calculation, Load verification for trusses, Calculation protocol export (PDF)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rigger monthly | $3.99 | per month |
| Rigger yearly | $29.99 | per year |


## Frequently asked questions

### Is ArrayCalc Viewer free?

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

### Is StageDocs free?

StageDocs is free to download, with in-app purchases available.

### Do ArrayCalc Viewer or StageDocs have ads?

Neither ArrayCalc Viewer nor StageDocs shows ads.

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

ArrayCalc Viewer ships an update every 4 months, and StageDocs every 3 weeks. Most recently, ArrayCalc Viewer was updated on October 7, 2026 and StageDocs on September 20, 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.*