249+ iOS apps curated and reviewed
With an average user rating of 4.3★, the hvac calculator load pro category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.0★ (1) | No | Yes | Jun 2026 | |
| 2 |  | Free | 4.8★ (43) | No | Yes | Oct 2026 | |
| 3 |  | $24.99 | 2.8★ (5) | No | Yes | Oct 2026 | |
| 4 |  | $9.99 | — | No | No | May 2026 | |
| 5 |  | Free | — | No | Yes | Jul 2026 | |
| 6 |  | Free | — | No | Yes | May 2026 | |
| 7 |  | $6.99 | 3.3★ (3) | No | Yes | Oct 2026 | |
| 8 |  | $34.99 | 3.0★ (3) | No | Yes | Oct 2026 |
This tool provides fast, accurate HVAC load calculations for residential systems. It helps professionals size furnaces, air conditioners, and gas equipment correctly, avoiding guesswork and spreadsheets for confident client recommendations and more closed bids.
This app provides professional HVAC load calculations for contractors, offering three levels of accuracy from quick estimates to detailed Manual J calculations. It's designed for field use with an intuitive interface, offline capabilities, and professional report generation.
Perform detailed heating and cooling load calculations for buildings in the field using your iPhone. Access a vast weather database and construction data to generate comprehensive reports that can be emailed or exported to spreadsheets.
