244+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our spiralite duct sizer list covers 244+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | $5.99 | 2.9★ (8) | No | Yes | Jun 2026 |
| 3 |  | Free | — | No | No | Jun 2026 |
| 4 |  | Free | 4.6★ (32) | No | Yes | Aug 2026 |
| 5 |  | $0.99 | 5.0★ (1) | No | No | Aug 2026 |
| 6 |  | Free | — | No | Yes | Jul 2026 |
| 7 |  | Free | 4.6★ (11) | Yes | No | Jul 2026 |
| 8 |  | $0.99 was $2.99 | 1.0★ (1) | No | No | Aug 2026 |
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.
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 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.
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.
This app helps determine duct construction and reinforcement options based on duct size and system pressure class. It provides condensed lists of suitable options, saving time spent on manual calculations and table lookups. Results are based on industry standards for galvanized steel duct sheets.
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.
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 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 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 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.
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 utility app helps HVAC engineers quickly calculate the recommended Thermaflex duct size for installations. Input project volume and friction loss to determine the optimal duct size based on established industry standards.
This app simplifies HVAC duct sizing calculations. It computes duct size, velocity, pressure drop, and flow rate with an intuitive interface. Supports various units and duct materials for precise HVAC design.