249+ iOS apps curated and reviewed
With an average user rating of 4.3★, the ashrae hvac duct sizer category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $5.99 | — | No | No | Sep 2026 | |
| 2 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 3 |  | Free | 4.6★ (32) | No | Yes | Sep 2026 | |
| 4 |  | $9.99 | 4.8★ (232) | No | No | Sep 2026 | |
| 5 |  | $4.99 was $5.99 | 3.1★ (9) | No | Yes | Sep 2026 | |
| 6 |  | Free | 5.0★ (1) | No | No | Jun 2026 | |
| 7 |  | $0.99 | — | No | Yes | Aug 2026 | |
| 8 |  | Free | — | No | Yes | Sep 2026 |
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 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.
