250+ iOS apps curated and reviewed
Looking for free duct calculator for hvac installations apps? 18 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (32) | No | Yes | Sep 2026 | |
| 2 |  | $3.99 | 4.7★ (317) | No | No | Sep 2026 | |
| 3 |  | Free | — | No | Yes | Aug 2026 | |
| 4 |  | Free | — | No | Yes | Sep 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 7 |  | $19.99 | 4.5★ (189) | No | No | Sep 2026 | |
| 8 |  | Free | 4.2★ (185) | No | No | Aug 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.
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.
