249+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our allday hvac calc 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 | 5.0★ (1) | No | Yes | May 2026 | |
| 2 |  | Free | — | No | Yes | Oct 2026 | |
| 3 |  | Free | 4.9★ (81) | No | Yes | Oct 2026 | |
| 4 |  | Free | 4.2★ (185) | No | No | Oct 2026 | |
| 5 |  | Free | — | — | No | Sep 2026 | |
| 6 |  | Free | — | No | Yes | Sep 2026 | |
| 7 |  | $3.99 | — | No | No | Sep 2026 | |
| 8 |  | Free | — | No | Yes | May 2026 |
This app offers three specialized modules for HVAC engineers: a psychrometric calculator for air properties, a pipe calculator for fluid dynamics and selection, and a duct calculator for air speed and pressure loss. It provides detailed calculations and reference formulas in both SI and IP units.
This app provides advanced calculations for HVAC and sheet metal professionals. It simplifies complex dimensional math, geometry, and trigonometry with specialized functions for ducting, airflow, and construction layouts. Offers a free trial before committing to a subscription.
