249+ iOS apps curated and reviewed
Looking for free hvac calculator apps? 19 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.9★ (87) | No | Yes | Oct 2026 | |
| 2 |  | Free | 4.8★ (17K) | No | No | Oct 2026 | |
| 3 |  | Free | — | No | Yes | Oct 2026 | |
| 4 |  | Free | — | — | No | Sep 2026 | |
| 5 |  | Free | 4.8★ (52) | No | No | Oct 2026 | |
| 6 |  | Free | — | No | Yes | Oct 2026 | |
| 7 |  | Free | 4.1★ (10) | No | No | Oct 2026 | |
| 8 |  | Free | 4.2★ (195) | No | No | Oct 2026 |
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.
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.
