210+ iOS apps curated and reviewed
Every iPhone needs a few good ductulator duct sizing apps. We benchmark 210+ 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 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 2 |  | Free | 4.6★ (32) | No | Yes | Sep 2026 | |
| 3 |  | $3.99 | 4.7★ (317) | No | No | Sep 2026 | |
| 4 |  | $3.99 | 4.8★ (6) | No | No | Aug 2026 | |
| 5 |  | Free | — | No | Yes | May 2026 | |
| 6 |  | Free | — | No | Yes | Sep 2026 | |
| 7 |  | Free | 4.2★ (185) | No | No | Aug 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
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.
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.
