Report updated Apr 28, 2026
HVAC Duct Sizer
For hVAC professionals, technicians, and students who require a portable tool for field sales and service calls.
Overview · Full Intel report in progress
HVAC Duct Sizer is an established utilities app that is completely free. With a 3.0/5 rating from 52 reviews, it shows polarized user reception.
What is HVAC Duct Sizer?
Current Momentum
v7.3 · 2mo ago
ActiveLast updated 70d ago. 5 versions tracked.
Competition
Rivals identification in progress
7-Day Rank Pulse 🇺🇸
UtilitiesNo ranking data
Rating Pulse 🇺🇸
What makes this app unique?
What Does It Look Like?
How Is The App's Momentum Right Now?
Loading...
What Are The Key Features?
Calculates duct sizes for single runs or ranges using the industry-standard constant friction method.
Allows users to input total airflow in CFM or L/s to determine appropriate duct dimensions.
Includes an integrated tool to help users locate specific HVAC equipment.
Optimized for both iPhone and iPad with responsive screen scaling.
How much does it cost?
Who Built It?
Carmel Software
Providing specialized engineering calculation tools for HVAC professionals. Streamlining complex thermodynamic and system sizing tasks for field technicians.
Portfolio
13
Apps
Who is Carmel Software?
Carmel Software Corporation maintains a long-standing niche in the HVAC engineering software market, operating as a specialized utility provider rather than a broad-market developer. Their strategic moat is built on deep domain expertise and the integration of proprietary calculation engines that serve as digital replacements for legacy industry tools like the Trane Ductulator. The portfolio reflects a transition toward cloud-connected mobile utilities, though they face ongoing pressure from free, industrial-grade alternatives that threaten their paid-tier revenue model.
Who is Carmel Software for?
- HVAC engineers
- Field technicians
- Installers requiring precise
- On-the-go thermodynamic
Portfolio momentum
With 30 releases in the last 6 months and a majority of the portfolio receiving updates within the last year, the publisher maintains an active development cycle for their specialized toolset.
What other apps does Carmel Software make?
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
Analysis in progress, available soon
What is the competitive landscape for HVAC Duct Sizer?
How's The Utilities Market?
How does it evolve in the Utilities market?
| Country | Category | Chart | Rank | Change |
|---|---|---|---|---|
| 🇪🇬 Egypt | Utilities | iOSPaid | #15 | ▼5 |
| 🇹🇭 Thailand | Utilities | iOSPaid | #28 | ▼10 |
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for HVAC Duct Sizer
Key Takeaways
While highly regarded for its utility in the field, users report a recurring UI bug that prevents the screen from scrolling to reveal results after data entry.
Where Is It Heading?
Trend analysis
Available very soon