249+ iOS apps curated and reviewed
Every iPhone needs a few good heat loss apps. We benchmark 249+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $5.99 | 1.0★ (1) | No | No | Aug 2026 | |
| 2 |  | Free | — | No | No | May 2026 | |
| 3 |  | Free | — | No | No | Aug 2026 | |
| 4 |  | $4.99 | 1.5★ (2) | No | No | Sep 2026 | |
| 5 |  | Free | — | No | Yes | Oct 2026 | |
| 6 |  | Free | — | No | No | Jun 2026 | |
| 7 |  | Free | 4.8★ (4.1K) | No | Yes | Oct 2026 | |
| 8 |  | Free | 4.8★ (7.9K) | No | Yes | Oct 2026 |
This app assists plumbers and heating engineers in calculating the heat output needed for each room in a building. It accounts for fabric and ventilation heat loss, providing results in Watts and BTU to help select appropriate radiators. The app also tracks multiple rooms to estimate the total heating system requirement.
