# Ecler UCP v2 vs ArrayCalc Viewer

The clearest difference is iOS requirement: Ecler UCP v2 at 9 against ArrayCalc Viewer's 16. On price, update cadence, ads 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.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Ecler UCP v2 | ArrayCalc Viewer |
| --- | --- | --- |
| 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 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | — | Free |
| Size | 29 MB | 40 MB |
| Requires iOS | **9** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NEEC AUDIO BARCELONA, S.L](https://appshunter.io/developer/454955841) | [d&b audiotechnik GmbH & Co. KG](https://appshunter.io/developer/1174327968) |

## What reviewers say

### Ecler UCP v2

[App page](https://appshunter.io/ios/app/ecler-ucp-v2/id1163815045)

**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 Ecler UCP v2 free?

Ecler UCP v2 is free to download, with no in-app purchases.

### Is ArrayCalc Viewer free?

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

### Do Ecler UCP v2 or ArrayCalc Viewer have ads?

Neither Ecler UCP v2 nor ArrayCalc Viewer shows ads.

### Which is updated more often, Ecler UCP v2 or ArrayCalc Viewer?

Ecler UCP v2 ships an update every 4 months, and ArrayCalc Viewer every 4 months. Most recently, Ecler UCP v2 was updated on October 6, 2026 and ArrayCalc Viewer on October 24, 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.*