Best Air Duct Design App

223+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated June 2026

Every iPhone needs a few good air duct design app. We benchmark 223+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Air Duct Design App (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Ductulator - Duct SizingDuctulator - Duct Sizing$3.994.7★ (272)NoNoJul 2026
2ArcSite: Floor Plans and CADArcSite: Floor Plans and CADFree4.7★ (8.6K)YesYesJul 2026
3AprilAire Healthy AirAprilAire Healthy AirFree4.6★ (15K)YesNoJul 2026
4Midea AirMidea AirFree4.7★ (24K)NoNoJul 2026
5Windmill AirWindmill AirFree4.7★ (4.4K)NoNoJul 2026
6SMACNA Duct-U-LatorSMACNA Duct-U-LatorFree5.0★ (1)NoNoMay 2026
7Duct Calculator - DuctCalcDuct Calculator - DuctCalcFree5.0★ (7)NoYesJul 2026
8AC InfinityAC InfinityFree4.2★ (816)NoNoJul 2026

Top Picks for Air Duct Design App

Ductulator - Duct Sizing#1

Ductulator - Duct Sizing by Wassim Murr

HVAC Duct Design Calculator
Editor's Choice
📊 Productivity
4.7(272 ratings)
$3.99
#35in 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.

ArcSite: Floor Plans and CAD#2

ArcSite: Floor Plans and CAD by Arctuition LLC

Sketch, Draw & Remodel On-Site
Strong Contender
📊 Productivity
4.7😐(8.6K ratings)
FreeAdsIn-App Purchases
ArcSite: Floor Plans and CAD screenshot 1
ArcSite: Floor Plans and CAD screenshot 2
ArcSite: Floor Plans and CAD screenshot 3
ArcSite: Floor Plans and CAD screenshot 4
ArcSite: Floor Plans and CAD screenshot 5
ArcSite: Floor Plans and CAD screenshot 6

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.

What We Love

  • 🚀 Easy and powerful tool
  • 👍 User-friendly and intuitive
  • 👍 Works great on all devices
  • 👍 Helps create accurate plans

Room to Improve

  • 💰 Expensive subscription
  • 🔒 Difficult to cancel subscription
  • 🐛 Drawings disappearing
AprilAire Healthy Air#3

AprilAire Healthy Air by Research Products Corporation

Worth Considering
🌟 Lifestyle
4.6😞(15K ratings)
FreeAds
AprilAire Healthy Air screenshot 1
AprilAire Healthy Air screenshot 2
AprilAire Healthy Air screenshot 3
AprilAire Healthy Air screenshot 4
AprilAire Healthy Air screenshot 5
AprilAire Healthy Air screenshot 6

Control your home's air quality remotely with this app. Adjust temperature, humidity, and freshness, and receive alerts for air quality events. Manage multiple devices and schedules for optimal comfort and energy savings.

What We Love

  • 💡 Convenient remote control
  • 👍 Intuitive scheduling options
  • 🚀 Fast and responsive app
  • 👍 Integrates well with HVAC system

Room to Improve

  • 🐛 Frequent connectivity issues
  • 👎 Outdated and confusing UI
  • 🐛 Unreliable app performance

More Air Duct Design App apps to explore

4
Midea Air
Midea Air
Midea Air
by GD Midea Air-Conditioning Equipment Co., Ltd.
Free

Control Midea smart air products remotely for comfort, efficiency, and safety. Customize sleep settings and schedule automatic operation. This app offers a new user experience with special functions and interactive design.

Remote control of Midea smart air productsCustomize sleep settingsTime scheduling for automatic operation
🔧 Utilities
(24K)
free
5
Windmill Air
Windmill Air
Windmill Air
Control your Windmill products
Free

This app allows you to remotely control your smart air care devices. Set schedules and adjust settings to create your ideal home climate from anywhere.

Remote product controlSet automation schedulesAdjust any setting
🔧 Utilities
(4.4K)
free
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
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
8
AC Infinity
AC Infinity
AC Infinity
AC Infinity Inc.
Free

Control and monitor your HVAC or grow environment with intelligent ventilation. Access advanced programming, view real-time environmental data, and receive customizable alerts for optimal control.

Wireless programming controlsScheduled fan automationCustomizable alarms and notifications
🌟 Lifestyle
(816)
free
9
Bluon HVAC
Bluon HVAC
Bluon HVAC
HVAC Tools
Free

Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.

500,000+ HVAC unit databaseManuals and part listsAI troubleshooting tool (MasterMechanic)
🔧 Utilities
(4.5K)
ad-supported
10
Blueair
Blueair
Blueair
Healthier living starts here
Free

Monitor and control your indoor air quality in real-time. Gain insights and manage your environment effectively with intelligent features, whether you're at home or away. Experience healthier living through advanced air care.

Real-time air quality trackingSeamless device controlsInsight and control of air
🌟 Lifestyle
(22K)
free
11
Digiduct
Digiduct
Digiduct
Duct-Sizing App
Free

This HVAC tool assists professionals with duct sizing calculations based on ASHRAE standards. It supports multiple duct shapes and offers intelligent features to ensure accurate and reliable designs for real-world scenarios.

Duct sizing for rectangular, round, and flat oval ductsCustomizable dimensions with locked valuesDuct location intelligence for context-aware sizing
🔧 Utilities
(11)
ad-supported
12
Mockup - UI/UX Design
Mockup - UI/UX Design
Mockup - UI/UX Design
Sketch, Wireframe, Prototype
Free

Design and prototype user interfaces and user experiences for apps and websites. Sketch ideas with Apple Pencil, create detailed wireframes with pre-set elements, and build interactive prototypes. Collaborate with others and export your designs in various formats.

Flexible canvas with device framesSketching tools with Apple Pencil supportWireframing with a library of preset elements
🎨 Graphics & Design
(521)
free with in-app purchases
13
EPA AIRNow
EPA AIRNow
EPA AIRNow
by Environmental Protection Agency
Free

Access real-time and forecasted air quality data for your local area and any other location. Plan your day and protect your health by understanding current air conditions.

Current air quality informationForecasted air qualityLocal AQI display
☀️ Weather
(545)
free
14
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
by Designstein, llc
Free

This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.

Superheat & Subcooling chargingDuct sizing & layout calculatorCompressor windings troubleshooter
🔧 Utilities
(185)
free
15
CE HVAC Pro+
CE HVAC Pro+
CE HVAC Pro+
HVAC Tools
Free

This app provides HVAC technicians with instant access to product information, including warranty status, inventory, and technical specifications. It offers real-time support, order tracking, and helpful calculators to streamline job management and business growth.

Real-time product availability & pricingOrder status and notificationsVideo/Text technical support
📊 Productivity
(1.6K)
free with in-app purchases
16
Air Command
Air Command
Air Command
Firestone RideRite Air Command
Free

Control your Air Command system by setting desired pressure levels and monitoring its current status. The application also provides fault detection to ensure optimal performance.

Set desired pressureDetect system faultsMonitor system status
🔧 Utilities
(1)
free
17
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
18
TrueFlow HVAC Air Flow
TrueFlow HVAC Air Flow
TrueFlow HVAC Air Flow
by The Energy Conservatory
Free

This tool offers a simple and accurate way to measure airflow through residential air handlers. It provides direct CFM readings quickly, without complex calculations. Designed for ease of use in various air handler configurations.

Accurate airflow measurementDirect CFM readingsFast 2-3 minute readings
💼 Business
(4)
free
19
Bosch MeasureOn
Bosch MeasureOn
Bosch MeasureOn
Upgrade your efficiency.
Free

Easily document floor plans, measurements, photos, and notes on-site. This app allows for cloud-based project access across all devices, ensuring your data is backed up and synchronized. Streamline your workflow and improve efficiency for various trade professionals and DIYers.

Infinite workspace for floor plans, photos, and notesDirect measurement input from laser range finder via BluetoothDocument wall dimensions, doors, and windows
📊 Productivity
(529)
free with in-app purchases
20
Easy Isometric: Pipe Iso App
Easy Isometric: Pipe Iso App
Easy Isometric: Pipe Iso App
Pipe Isometric Drawing App
Free

Create accurate pipe isometric drawings on your iPad or iPhone. This app automates calculations and labeling, generating bills of materials and PDF reports for efficient fabrication and purchasing.

Automated dimension calculationsIntegrated ASME and ASTM standardsBill of Materials generator
💼 Business
(57)
subscription

FAQ about Air Duct Design App

What is the best air duct design app for iPhone?
Ductulator - Duct Sizing tops our air duct design app ranking as of June 2026, with a 4.7-star average from 272 App Store ratings, and it's priced at $3.99.
Yes — 19 of the top air duct design app we rank are free to download, including ArcSite: Floor Plans and CAD and AprilAire Healthy Air.
Ductulator - Duct Sizing has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 223+ air duct design app on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Ductulator is a mobile application designed to instantly calculate HVAC duct sizes. It allows users to determine accurate duct dimensions based on airflow, friction rate, or velocity, eliminating the need for manual chart lookups.
Key features include instant calculation of suitable duct sizes based on friction rate or velocity, support for both IP and SI units, a detailed sizing mode for adjusting parameters, and compatibility with rectangular, circular, and flexible ducts.