37+ iOS apps curated and reviewed
With an average user rating of 3.5★, the smacna category is one of the App Store's strongest. Browse all 37+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 2.2★ (26) | No | No | Sep 2026 | |
| 2 |  | Free | 5.0★ (1) | No | No | May 2026 | |
| 3 |  | Free | — | No | No | May 2026 | |
| 4 |  | Free | 3.3★ (28) | No | No | Aug 2026 | |
| 5 |  | Free | — | No | No | Sep 2026 | |
| 6 |  | Free | — | No | No | May 2026 | |
| 7 |  | Free | 1.7★ (228) | Yes | No | Aug 2026 | |
| 8 |  | Free | 4.2★ (172) | No | No | Sep 2026 |
This tool helps engineers, architects, designers, and contractors accurately estimate air leakage from ductwork. It simplifies determining pass/fail for duct air leakage tests and allows combining multiple duct sections for total leakage calculations, adhering to industry standards.
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.
