HVAC Duct Calculator·Ductwork is a specialized sizing tool for residential HVAC contractors to model supply and return paths on iOS.
The App DNA
What makes this app unique?
The app removes the need for manual, single-duct calculations by modeling the entire critical path in series, which saves time for contractors on job sites.
For US residential HVAC contractors and technicians requiring field-based duct sizing and pressure loss verification.
What does it look like?
Key features
Models supply and return paths in series through the air handler to calculate total pressure loss across the entire system.
Iterates through available duct sizes to maintain a 15% pressure budget reserve.
Generates a formatted report including drawings, pressure breakdowns, and element losses for export.
How much does it cost?
The freemium model uses a one-time purchase to gate professional reporting and multi-job management features.
Velocity
Maintenance developmentopaqueShow more...
With only one release in the observed window, the app operates on a maintenance cadence. The latest release provides no specific feature information, leaving the development focus opaque. There is no evidence of active feature development or live operations, suggesting a stable, low-frequency update cycle.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for HVAC Duct Calculator·Ductwork
How's the Utilities market?
HVAC Duct Calculator·Ductwork serves a specialized segment within the Utilities category, focusing on professional engineering utility rather than mass-market appeal. The $24.99 one-time price point positions the app as a premium, non-subscription alternative for contractors.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for HVAC Duct Calculator·Ductwork
Where is it heading?
The residential HVAC contractor market is increasingly moving toward mobile-first engineering tools that replace manual calculation methods. HVAC Duct Calculator·Ductwork is well-positioned to serve this shift if it maintains its focus on offline utility and professional reporting, which are critical for field-based work.
- The one-time purchase model appeals to contractors who prefer avoiding recurring subscription costs for professional tools.
- The app remains in a maintenance phase 21 days post-launch, suggesting a focus on stability over rapid feature expansion.
The SWOT
- Whole-run modeling provides specialized engineering utility for residential HVAC contractors
- Automatic stock sizing automates complex manual calculations
- Offline-first architecture ensures utility in remote job sites
- Localized pricing could expand reach in international markets where residential HVAC standards align with US practice
Next best moves
Ship a limited-time trial for the $24.99 unlock because the high entry price without a trial limits conversion → increase paid conversion rate
The counter-intuitive read
The lack of subscription-based revenue is a retention lever in the contractor market…
Read the full takeBottom line
HVAC Duct Calculator·Ductwork defends its niche with specialized whole-run modeling, but the lack of a trial period for the $24.99 unlock limits the conversion funnel for skeptical contractors. Focusing on professional reporting utility will sustain the current one-time purchase model.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is HVAC Duct Calculator·Ductwork suitable for professional HVAC design?
Does the app require an internet connection to function?
What features are included in the free version?
Sources
- [1] App Store, source
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