249+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our air duct calculator list covers 249+ iPhone apps updated through October 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (35) | No | Yes | Oct 2026 | |
| 2 |  | Free | 5.0★ (1) | No | Yes | Oct 2026 | |
| 3 |  | Free | 4.7★ (3) | No | Yes | Nov 2026 | |
| 4 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | — | No | Yes | Jun 2026 | |
| 7 |  | $3.99 | 4.7★ (361) | No | No | Nov 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
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 helps HVAC professionals quickly size ducts, check airflow, and perform pressure calculations. It offers detailed engineering values and supports both imperial and metric units for practical on-site work.
This professional HVAC utility assists engineers and technicians with precise duct sizing and airflow calculations for ventilation systems. It simplifies essential calculations for both design and installation work, improving on-site efficiency.
