176+ iOS apps curated and reviewed
With an average user rating of 4.4★, the duct sizer category is one of the App Store's strongest. Browse all 176+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 1.9★ (20) | No | Yes | May 2026 |
| 2 |  | Free | 5.0★ (7) | No | Yes | Jul 2026 |
| 3 |  | Free | 5.0★ (1) | No | No | May 2026 |
| 4 |  | $4.99 | — | No | No | May 2026 |
| 5 |  | $5.99 | 2.9★ (8) | No | Yes | Jun 2026 |
| 6 |  | $5.99 | — | No | No | Jun 2026 |
| 7 |  | $3.99 | 4.8★ (6) | No | No | Jul 2026 |
| 8 |  | $3.99 | 4.7★ (272) | No | No | Jul 2026 |
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.
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.
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 utility app provides a quick and accurate ductulator for calculating equivalent round and rectangular duct sizes. It supports both Imperial and SI units, offering a simple finger-slide interface for fast computations.
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.
Calculate HVAC duct sizes using the constant friction method. Input airflow or dimensions to determine duct sizes, velocity, and friction loss. Supports rectangular, round, and oval ducts with adjustable air temperature and pressure.
This app calculates the correct dimensions for sheet metal ductwork. It simplifies the process of determining airflow and pressure drop for HVAC systems. Essential for professionals in the sheet metal and HVAC industries.
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 tool quickly calculates HVAC duct sizes based on airflow and friction loss. It supports various duct shapes and provides key airflow values for field use.
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.
This utility app assists HVAC design professionals in calculating duct sizes. It goes beyond basic calculations to provide a list of suitable duct sizes based on design criteria, offering an intuitive interface for precise adjustments.
Record your fishing catches with photos and automatically log details like location, weather, and tide charts. Discover popular fishing spots and gear through community-shared data. Connect with other anglers and book fishing trips directly through the app.
This app provides HVAC professionals with quick access to product information, tools, and support. It allows users to check pricing, availability, find locations, and manage warranty claims. Features include a PT calculator, duct calculators, and a flashlight tool for on-site work.
This application serves as a duct sizing calculator for HVAC professionals and enthusiasts. It provides quick and accurate calculations for duct dimensions based on various parameters.
This utility app performs essential calculations for ventilation systems. It offers tools for converting duct sizes, determining air parameters like speed and airflow, and calculating pressure drops. It also includes a unit converter for various measurements.
This utility app helps HVAC professionals and enthusiasts quickly calculate essential airflow metrics for various duct sizes. It provides CFM, FPM, and FL values, simplifying HVAC system design and analysis.