# ArrayCalc Viewer vs Quyu

The clearest difference is rating: Quyu at 5.0 against ArrayCalc Viewer's 4.1. ArrayCalc Viewer's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Quyu holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

ArrayCalc Viewer ships an update every 4 months, Quyu every 2 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ArrayCalc Viewer | Quyu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (8 ratings)](https://appshunter.io/ios/app/arraycalc-viewer/id1181023656/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/quyu/id1411884776/reviews)** |
| Number of ratings | **8** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 40 MB | 29 MB |
| Requires iOS | 16 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [d&b audiotechnik GmbH & Co. KG](https://appshunter.io/developer/1174327968) | [Quyu LLC](https://appshunter.io/developer/1381206070) |

## 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


### Quyu

[App page](https://appshunter.io/ios/app/quyu/id1411884776)

This app provides real-time updates on crowds, wait times, and parking for local businesses. Users can contribute updates to improve accuracy and earn rewards. It helps plan your day and discover new places.

**Highlights:** Real-time Qscore updates, Crowd and wait time indicators, User-submitted place status updates, Heatmaps for daily planning, Save favorite places, Earn points and climb leaderboards, Access special offers and rewards

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ArrayCalc Viewer free?

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

### Is Quyu free?

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

### Which has better reviews, ArrayCalc Viewer or Quyu?

Quyu is rated higher. ArrayCalc Viewer averages 4.1 out of 5 from 8 ratings, while Quyu averages 5.0 from 2 ratings.

### Do ArrayCalc Viewer or Quyu have ads?

Quyu shows ads; ArrayCalc Viewer does not.

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

ArrayCalc Viewer ships an update every 4 months, and Quyu every 2 months. Most recently, ArrayCalc Viewer was updated on October 7, 2026 and Quyu on October 15, 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.*