201+ iOS apps curated and reviewed
With an average user rating of 3.9★, the duct sizer category is one of the App Store's strongest. Browse all 201+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (2) | No | No | Aug 2026 | |
| 2 |  | $4.99 was $5.99 | 3.1★ (9) | No | Yes | Sep 2026 | |
| 3 |  | Free | 4.6★ (33) | No | Yes | Oct 2026 | |
| 4 |  | $3.99 | 4.7★ (317) | No | No | Oct 2026 | |
| 5 |  | Free | — | No | Yes | Jul 2026 | |
| 6 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 7 |  | Free | — | No | No | May 2026 | |
| 8 |  | Free | 1.9★ (20) | No | Yes | May 2026 |
This tool quickly calculates HVAC duct sizes based on airflow and friction loss. It supports various duct shapes and provides key airflow values for field use.
This app provides quick and simple HVAC duct sizing analysis. It allows users to calculate duct dimensions based on airflow or existing dimensions, and can also determine a range of duct sizes. Results can be emailed for further analysis.
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.
