249+ iOS apps curated and reviewed
With an average user rating of 3.8★, the air duct size calculator 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 |  | Free | 4.5★ (36) | No | Yes | Nov 2026 | |
| 2 |  | Free | 5.0★ (1) | No | Yes | Nov 2026 | |
| 3 |  | Free | 5.0★ (1) | No | Yes | Oct 2026 | |
| 4 |  | $5.99 | — | No | No | Sep 2026 | |
| 5 |  | $4.99 | — | No | No | Nov 2026 | |
| 6 |  | $3.99 | — | No | No | Sep 2026 | |
| 7 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 8 |  | $1.99 was $6.99 | — | No | No | Oct 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.
Calculate ductwork sizes instantly for various shapes including round, rectangular, flex, and flat-oval. Track static pressure per job and generate client-ready PDF schedules. Works offline and supports both imperial and metric units.
