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.






223+ iOS apps curated and reviewed
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.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $3.99 | 4.7★ (272) | No | No | Jul 2026 | |
| 2 | Free | 4.7★ (8.6K) | Yes | Yes | Jul 2026 | |
| 3 | Free | 4.6★ (15K) | Yes | No | Jul 2026 | |
| 4 | Free | 4.7★ (24K) | No | No | Jul 2026 | |
| 5 | Free | 4.7★ (4.4K) | No | No | Jul 2026 | |
| 6 | Free | 5.0★ (1) | No | No | May 2026 | |
| 7 | Free | 5.0★ (7) | No | Yes | Jul 2026 | |
| 8 | Free | 4.2★ (816) | No | No | Jul 2026 |






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.






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.






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.


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.


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.


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.


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.


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.


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.


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.


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.


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.


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.


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.


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.


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.


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.


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.


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.


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.