242+ iOS apps curated and reviewed
Radiator Calculator Pro is the household name in radiator calculator pro, but it's far from the only option. We track 242+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free was $0.99 | — | No | No | Aug 2026 | |
| 2 |  | $1.99 | 4.8★ (4) | No | No | Aug 2026 | |
| 3 |  | Free | 4.9★ (409K) | Yes | No | Sep 2026 | |
| 4 |  | Free | 4.5★ (126K) | Yes | Yes | Sep 2026 | |
| 5 |  | Free | 4.7★ (61K) | No | No | Sep 2026 | |
| 6 |  | Free | 4.9★ (34K) | Yes | Yes | Sep 2026 | |
| 7 |  | $4.99 | 1.5★ (2) | No | No | Aug 2026 | |
| 8 |  | Free | 4.4★ (10) | No | Yes | Sep 2026 |
Accurately calculate the heating requirements for any room in your home. This tool supports unlimited rooms, offers precise calculations in Watts and BTU, and features a clean, intuitive design with dark mode support.
Calculate the ideal radiator size and quantity for any room. Input room details like dimensions, glazing, and wall types to get precise recommendations. Save and email room specifications for later reference or client sharing.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
