ArrayCalc Viewer vs Quyu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ArrayCalc Viewer
Access detailed project data for rigging d&b audiotechnik loudspeaker systems on your iOS device. Share and view essential rigging, setup, and system information for efficient, paperless operation.
- Access project data for rigging d&b loudspeaker systems
- View splay angle, amplifier ID, and cabling info
- Check flying frame height and lowest edge height
- See frame angle, aiming, and pickpoints
- Access weight and load status
- Receive immediate updates on system design changes
- Paperless and efficient rigging operations
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The d&b ArrayCalc Viewer app provides all project data for rigging a d&b audiotechnik loudspeaker system. Once the system has been designed, calculated and optimized in the ArrayCalc simulation software, all relevant project information can be shared via email, AirDrop, Dropbox or iTunes onto any iOS device. The d&b ArrayCalc simulation software is the simulation tool for d&b line arrays, column and point source loudspeakers as well as subwoofers. This is a comprehensive toolbox for all tasks associated with acoustic design, performance prediction, alignment, rigging and safety parameters. It is available as a native stand alone application for both Microsoft Windows and Mac OS X operating systems at www.dbaudio.com. The ArrayCalc Viewer app provides data such as splay angle, amplifier channel ID and cabling information, flying frame height and the height of the lowest edge, frame angle, horizontal aiming, Pickpoints, weight and load status. Any change to the system design can be distributed to each user immediately, ensuring an efficient and user friendly approach to rigging. ArrayCalc Viewer main benefits: - All relevant rigging, setup and system information close to hand in a concise format - Any changes to the system design can be immediately distributed - Paperless and efficient - User friendly
Quyu
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.
- 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
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Built for the intersection of your life and your time, Quyu helps add time to yoour day by providing real-time updates on your favorite places. Check Qscore updates on crowds, wait times, parking and more. Use Quyu’s easy slider features to update the status of nearby places as conditions change throughout the day and night. At its core, Quyu is a marketplace platform that’s community driven primarily by local businesses and consumers. Our “Qscores” allows people the convenience of choosing their best times to shop, eat, or go anywhere or do anything. Quyu is designed to help people find great local businesses as well as helping businesses retain and attract great customers. Also, Quyu gets more accurate as more people use it. Try Quyu today and do busy better! What are you waiting for?! FEATURES: - Scroll through Nearby places to quickly assess places around you. - At a glance, Qscores provide updates on crowds, lines, wait times and more. - Green means go... and red signals trouble. - Move the sliders to provide real-time updates on crowds, lines, wait times, safety and more. - Check the Today tab to see Quyu heatmaps to help plan your day. - Sort places by Categories to customize your searches. - Save your favorite places and see your Recent searches. - Tap on the address of a place to launch your favorite mapping app for directions. - Tap on “Contact” to place a call to the place you want to visit. - Add Comments, Photos and Share places you visit. - Earn points for providing updates on places you visit and climb the Leaderboard as you advance to new levels. - Accept and save Special Offers and Rewards from participating businesses.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 November 6, 2026 and November 2, 2026 respectively.
| Parameter | ArrayCalc Viewer | Quyu |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (8 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 8 — better | 2 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 16 | 15.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | d&b audiotechnik GmbH & Co. KG | Quyu LLC |
Customer experience
ArrayCalc Viewer
Quyu
In-app purchases
ArrayCalc Viewer
No in-app purchases
Quyu
No in-app purchases









