Comparison

bimCAD + Luftverbund App vs Crown Centrex

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

bimCAD + Luftverbund App

Features
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bimCAD app - drawing and Hottscan in one app. Start collecting data for your BIM project on site. With the basic drawing module of the bimCAD app, you can quickly record rooms and building floor plans on site with ease. In the free entry-level version you can manage projects, draw in 2D, display a 3D view, take notes, add photos to objects such doors, windows and rooms. The result is displayed at the push of a button in a number of printout templates. The HottScan module enables you position scanners in your drawings, which can then be linked to scans and brings other useful features with it. For Example, the type of room and the floor are assigned directly onto the scans of the hardware itself via the app. There is also a remote controlling feature of the scanner. HottScan hardware is required for these functions.

About

Crown Centrex

Transform your smartphone into a mobile extension of your virtual PBX. Make and receive calls worldwide using your landline number for cost-efficient and mobile communication. Access all the features of your Gamma Cloud PBX system directly from your device.

Highlights
  • Smartphone as mobile PBX extension
  • Worldwide calls with landline number
  • Cost-efficient mobile calling
  • Access to PBX features
  • Gamma Cloud PBX integration
Features
Read full description

Crown cetrex is a modern communication serviceof Gamma. Get your telephone system to your phone. With this app you can use your smartphone as a mobile extension of your virtual PBX. Start and receive worldwide calls with your landline number so that you can telephone cost-efficient and mobile. Take advantage of the functions of your PBX and all the features of Gamma Cloud PBX

Screenshots

bimCAD + Luftverbund App1 screens
Crown Centrex3 screens

Verdict

The call

bimCAD + Luftverbund App and Crown Centrex are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

bimCAD + Luftverbund App ships an update every 3 months, Crown Centrex every 6 months. The most recent releases landed on October 26, 2026 and October 6, 2026 respectively.

ScorecardNo meaningful differences
bimCAD + Luftverbund App versus Crown Centrex: the parameters behind the verdict, then further details
ParameterbimCAD + Luftverbund AppCrown Centrex
PriceFreeFree
Positive reviewsโ€”0.0% of reviews
Update frequencyEvery 3 months โ€” betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
Monetizationโ€”Free
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS12.0 โ€” better13.0
Further details โ€” not scored
Size157 MB32 MB
Age rating4+4+
DeveloperHottgenroth Software AGGamma Communications GmbH

In-app purchases

None

bimCAD + Luftverbund App

No in-app purchases

None

Crown Centrex

No in-app purchases

Questions

Is bimCAD + Luftverbund App free?
bimCAD + Luftverbund App is free to download, with no in-app purchases.
Is Crown Centrex free?
Crown Centrex is free to download, with no in-app purchases.
Do bimCAD + Luftverbund App or Crown Centrex have ads?
Neither bimCAD + Luftverbund App nor Crown Centrex shows ads.
Which is updated more often, bimCAD + Luftverbund App or Crown Centrex?
bimCAD + Luftverbund App ships an update every 3 months, and Crown Centrex every 6 months. Most recently, bimCAD + Luftverbund App was updated on October 26, 2026 and Crown Centrex on October 6, 2026.

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