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Best Duct Design Software Apps

219+ iOS apps curated and reviewed

4.3 avg rating
17 free apps
Updated June 2026

With an average user rating of 4.3★, the duct design software category is one of the App Store's strongest. Browse all 219+ apps we track, sorted so the most loved ones surface first.

Top Picks for Duct Design Software

SketchUp - 3D Modeling#1

SketchUp - 3D Modeling by Trimble Inc.

Interior Design & Architecture
Editor's Choice
🎨 Graphics & Design
4.5😐(17K ratings)
FreeAdsIn-App Purchases
SketchUp - 3D Modeling screenshot 1
SketchUp - 3D Modeling screenshot 2
SketchUp - 3D Modeling screenshot 3
SketchUp - 3D Modeling screenshot 4

This platform offers intuitive 3D modeling tools for design enthusiasts and professionals. Visualize concepts, create photorealistic visuals, and even use AI to generate design ideas. Scan real-world spaces and view your creations in augmented reality.

What We Love

  • 🚀 Great potential
  • 👍 Intuitive and easy to use
  • 🚀 Powerful and capable
  • 👍 Excellent for designers, engineers, and contractors

Room to Improve

  • 🔒 Requires paid subscription
  • 🐛 Crashes and stability issues
  • 🔒 Limited functionality in free version
Ductulator - Duct Sizing#2

Ductulator - Duct Sizing by Wassim Murr

HVAC Duct Design Calculator
Strong Contender
📊 Productivity
4.7(272 ratings)
$3.99
#32in Productivity
Ductulator - Duct Sizing screenshot 1
Ductulator - Duct Sizing screenshot 2
Ductulator - Duct Sizing screenshot 3
Ductulator - Duct Sizing screenshot 4
Ductulator - Duct Sizing screenshot 5
Ductulator - Duct Sizing screenshot 6

Instantly calculate HVAC duct sizes based on airflow, friction rate, or velocity. This tool provides accurate duct dimensions in seconds without needing charts, supporting various duct types and units.

uMake: 3D CAD Modeling, Design#3

uMake: 3D CAD Modeling, Design by UMake, Inc.

Sketch, Model & Design with AI
Worth Considering
🎨 Graphics & Design
4.2😞(4K ratings)
FreeAdsIn-App Purchases
uMake: 3D CAD Modeling, Design screenshot 1
uMake: 3D CAD Modeling, Design screenshot 2
uMake: 3D CAD Modeling, Design screenshot 3
uMake: 3D CAD Modeling, Design screenshot 4
uMake: 3D CAD Modeling, Design screenshot 5
uMake: 3D CAD Modeling, Design screenshot 6

Create professional 3D CAD models, architectural designs, and product concepts on your iPad or iPhone. This app offers industrial-grade modeling tools, AI-powered design features, and extensive resources for designers and engineers.

What We Love

  • 🚀 Simple and easy to use
  • 🔍 Powerful 3D design capabilities
  • 💡 Useful pre-made templates
  • 👍 Great for beginners

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Locked behind paywall
  • 🐛 Frequent crashes and performance issues

More Duct Design Software apps to explore

4
HVAC Duct Sizer
HVAC Duct Sizer
HVAC Duct Sizer
HVAC duct sizing and more...
$5.99

This app provides quick and simple HVAC duct sizing analysis. It allows users to calculate duct dimensions based on airflow or existing dimensions, and can also determine a range of duct sizes. Results can be emailed for further analysis.

Duct sizing by airflowDuct sizing by dimensionsRange of duct sizes calculation
🔧 Utilities
(8)
free with in-app purchases
5
ArcSite: Floor Plans and CAD
ArcSite: Floor Plans and CAD
ArcSite: Floor Plans and CAD
Sketch, Draw & Remodel On-Site
Free

This app allows contractors to create accurate floor plans and site layouts directly on-site. It streamlines the process of planning remodels, running takeoffs, generating professional proposals, and collecting payments, all from a mobile device.

Sketch accurate floor plans on-sitePlan remodels and renovationsRun takeoff and generate material lists
📊 Productivity
(8.5K)
free with in-app purchases
6
SMACNA Duct-U-Lator
SMACNA Duct-U-Lator
SMACNA Duct-U-Lator
Size Simple HVAC Duct Runs
Free

This tool simplifies HVAC duct sizing for professionals. It quickly calculates dimensions for rectangular, round, and oval ducts based on airflow, friction loss, and velocity, ensuring optimal ventilation system performance.

Rectangular, round, and oval duct sizingReal-time calculation updatesConverts duct shapes and sizes
💼 Business
(1)
free
7
Live Home 3D - House Design
Live Home 3D - House Design
Live Home 3D - House Design
Your Dream Home Design
Free

Create detailed floor plans and visualize your home designs in real-time 3D. This app offers tools for interior design, landscape planning, and renovation projects, allowing you to experiment with layouts, materials, and furniture before making real-world decisions. It supports architecture and construction-ready output for professional use.

2D floor plan creationReal-time 3D visualizationExtensive object and material library
📊 Productivity
(18K)
free with in-app purchases
8
Fieldwire - Construction App
Fieldwire - Construction App
Fieldwire - Construction App
Field Management & Punch List
Free

This app streamlines construction project management for field teams. It offers fast blueprint viewing, task management, RFI tracking, and punch list creation, all accessible offline. It aims to improve efficiency and communication on job sites.

Fast HD plan viewer (offline)Task managementRFI tracking
💼 Business
(13K)
free with in-app purchases
9
AutoCAD
AutoCAD
AutoCAD
DWG Viewer & Editor
Free

Access and edit CAD drawings on the go with this official application. It provides essential drafting and design tools for creating, updating, and sharing 2D drawings from any device. Collaborate with teams and simplify workflows by accessing files from various cloud storage services.

2D file viewingCreate, edit, and share 2D drawingsOffline work and sync
📊 Productivity
(6.3K)
freemium
10
DWG FastView-CAD Viewer&Editor
DWG FastView-CAD Viewer&Editor
DWG FastView-CAD Viewer&Editor
* Support 2D/3D CAD formats
Free

This cross-platform CAD application allows users to view, edit, and create 2D and 3D designs on the go. It supports a wide range of file formats and offers advanced tools for precise drawing, measurement, and annotation, even offline.

View and edit 2D/3D CAD drawingsSupports over 40 3D drawing formatsAccurate measurement and annotation tools
📊 Productivity
(50)
free with in-app purchases
11
Duct Calculator
Duct Calculator
Duct Calculator
Ductulator & Duct Sizer
$19.99

This app allows HVAC professionals to quickly and accurately size new ducts or calculate the performance of existing ones. It supports both round and rectangular ductwork, offering precise calculations through direct entry or intuitive sliders. The tool provides live updates and outputs key performance metrics.

Size round and rectangular ductworkAdjust airflow, diameter, width, and heightDirect number entry for precision
🔧 Utilities
(179)
free
12
Autodesk Forma
Autodesk Forma
Autodesk Forma
Construction Management
Free

This app provides construction professionals with essential tools for jobsite management. Capture punch lists, log daily reports, and access the latest project documents and 3D models directly from the field. Stay connected to your team and keep projects moving forward efficiently.

Capture punch list itemsLog daily reports and formsView and markup drawings
💼 Business
(21K)
free with in-app purchases
13
RedX Decks - 3D Deck Builder
RedX Decks - 3D Deck Builder
RedX Decks - 3D Deck Builder
Design, Visualize & Build
Free

Design and visualize complex deck structures, including roofs and stairs, with automatic framing and structural calculations. Generate professional, permit-ready blueprints and detailed material lists for efficient construction.

3D deck and roof designAutomatic framing layoutsStructural calculations
🔧 Utilities
(453)
free with in-app purchases
14
Duct Calculator - DuctCalc
Duct Calculator - DuctCalc
Duct Calculator - DuctCalc
HVAC Sizing & Psychrometric
Free

This app provides professional HVAC duct sizing and psychrometric calculations in a single tool. It offers detailed calculations for various duct types and materials, along with comprehensive humid air property analysis. Designed for HVAC professionals, it replaces traditional ductulators with accurate digital functionality.

Duct sizing for round, rectangular, and flexible ductsFittings pressure drop calculationPsychrometric analysis with interactive chart
🔧 Utilities
(7)
free with in-app purchases
15
Houzz Pro
Houzz Pro
Houzz Pro
Estimates, Invoices, 3D Plans
Free

Streamline your home professional business with an all-in-one toolkit. Manage projects, create estimates and invoices, communicate with clients, and visualize designs with AI-powered tools and 3D floor plans. Get paid faster and win more jobs.

AI-enhanced estimates and proposals3D floor plans and photo-realistic rendersInvoices and online payment collection
💼 Business
(4.7K)
free with in-app purchases
16
Buildertrend
Buildertrend
Buildertrend
Construction Management App
Free

Streamline construction projects and business operations. This platform helps professionals reduce delays, minimize communication errors, and enhance client satisfaction. Manage projects, finances, and team collaboration from anywhere.

Project ManagementClient Relationship ManagementFinancial Management
💼 Business
(5K)
ad-supported
17
Kimi - Kimi K2.6 is Live
Kimi - Kimi K2.6 is Live
Kimi - Kimi K2.6 is Live
K2.5·Visual·Agent·Code·Office
Free

This AI-powered agent assists with coding, content creation, and office tasks. It can generate presentations, build websites from designs, and perform complex research with autonomous sub-agents for enhanced efficiency. Handle large documents and detailed conversations with its extensive context window.

Autonomous sub-agent creation for parallel efficiencyCode, create, analyze, and build presentationsAutomate workflows with scheduled tasks and long-term memory
📊 Productivity
(4.6K)
freemium
18
3D Snap: LiDAR Scanner & Ruler
3D Snap: LiDAR Scanner & Ruler
3D Snap: LiDAR Scanner & Ruler
Room & Floor Plan, AR Measure
Free

Transform your iPhone into a powerful floor plan creator and 3D scanner using LiDAR technology. Quickly capture room layouts, measure spaces, and visualize objects in 3D for renovation, interior design, or moving.

LiDAR-powered room scanningInstant floor plan generation3D object scanning from photos
📊 Productivity
(81)
free with in-app purchases
19
FieldFab
FieldFab
FieldFab
CAD for the HVAC installer
Free

This app helps HVAC installers create precise ductwork transitions in the field using augmented reality. It streamlines the process of measuring, designing, and visualizing complex ductwork before cutting any materials, saving time and reducing errors.

Augmented reality visualizationDuctwork transition designField measurements input
🎨 Graphics & Design
(65)
free
20
DuctCalc.Ca
DuctCalc.Ca
DuctCalc.Ca
Ductulator Duct Calculator
Free

This utility app calculates duct dimensions and air velocity using two methods: Equal Friction and Velocity. It supports both round and rectangular ducts, offering precise calculations for HVAC professionals. Offline functionality is available with a subscription.

Duct sizing calculatorEqual Friction MethodVelocity Method
🔧 Utilities
(20)
free with in-app purchases