Comparison

Crassus vs whiteAIR

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

Head to head
About

Crassus

Features
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Crassus is the problem solver for connecting different pipe systems. With the Adapter Finder, our app helps you quickly identify the right adapter for two identical or different pipe systems. On the product pages, you’ll find all relevant information and details (images, dimensions, specifications, videos, and more). The dealer search helps you find a sanitary, building materials, or civil engineering supplier near you. Already trusted by more than 18,000 smart installers! Key Features: - Adapter Finder: Quickly finds the right adapter for connecting identical or different pipe systems. - Dealer Search: Shows sanitary, building materials, and civil engineering dealers and other suppliers near you. - Product Catalog: All Crassus products with images, dimensions, specifications, and detailed information. - Pipe Encyclopedia: Discover over 280 pipe systems with more than 3,500 pipe variants. - Multi-language: German and English. - Display Modes: Light Mode and Dark Mode. - Available for smartphones and tablets.

About

whiteAIR

Control, automate, and monitor your decentralized ventilation system from your smartphone. Achieve healthy, energy-efficient home ventilation with ease.

Highlights
  • Remote system control
  • Automation capabilities
  • Real-time monitoring
  • Smartphone integration
  • Energy-efficient operation
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Experience the future of home ventilation. With the whiteAIR app, you can conveniently control, automate and monitor your decentralized ventilation system via your smartphone in combination with its control unit. Healthy, energy-efficient ventilation has never been so easy.

Screenshots

Crassus4 screens
whiteAIR4 screens

Verdict

The call

Crassus and whiteAIR are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Crassus ships an update every 15 months, whiteAIR every 8 months. The most recent releases landed on September 17, 2026 and October 8, 2026 respectively.

ScorecardNo meaningful differences
Crassus versus whiteAIR: the parameters behind the verdict, then further details
ParameterCrassuswhiteAIR
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 15 monthsEvery 8 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size76 MB23 MB
Age rating4+4+
DeveloperCrassus GmbH & Co. KGKlimatechnik Weiss GmbH

In-app purchases

None

Crassus

No in-app purchases

None

whiteAIR

No in-app purchases

Questions

Is Crassus free?
Crassus is free to download, with no in-app purchases.
Is whiteAIR free?
whiteAIR is free to download, with no in-app purchases.
Do Crassus or whiteAIR have ads?
Neither Crassus nor whiteAIR shows ads.
Which is updated more often, Crassus or whiteAIR?
Crassus ships an update every 15 months, and whiteAIR every 8 months. Most recently, Crassus was updated on September 17, 2026 and whiteAIR on October 8, 2026.

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