248+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our allday hvac calc list covers 248+ iPhone apps updated through September 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 |  | $9.99 | 4.8★ (232) | No | No | Sep 2026 | |
| 3 |  | Free | 4.8★ (17K) | No | No | Sep 2026 | |
| 4 |  | Free was $29.99 | 4.9★ (75) | No | Yes | Sep 2026 | |
| 5 |  | Free | 4.2★ (185) | No | No | Aug 2026 | |
| 6 |  | Free | 5.0★ (1) | No | Yes | Sep 2026 | |
| 7 |  | Free | 4.6★ (14) | Yes | No | Aug 2026 | |
| 8 |  | Free | — | No | Yes | Aug 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 simplifies HVAC duct sizing calculations. It computes duct size, velocity, pressure drop, and flow rate with an intuitive interface. Supports various units and duct materials for precise HVAC design.
This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.
