248+ iOS apps curated and reviewed
Hotstart Heater Sizing App is the household name in hotstart heater sizing app, but it's far from the only option. We track 248+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (2) | No | No | May 2026 | |
| 2 |  | Free | — | No | No | Oct 2026 | |
| 3 |  | Free | 4.7★ (21) | No | No | Aug 2026 | |
| 4 |  | Free | 3.0★ (2) | No | No | May 2026 | |
| 5 |  | Free | — | — | No | Jul 2026 | |
| 6 |  | Free | — | No | No | May 2026 | |
| 7 |  | Free | 1.0★ (1) | No | No | May 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
This application helps users select the optimal engine heater for industrial applications. It considers factors like fluid type, environmental conditions, and power requirements to provide a recommended solution. Users can then contact the developer to confirm their heater choice.
This app provides trade professionals with a mobile platform to shop for plumbing, heating, HVAC, electrical, and industrial supplies. It features powerful search tools, including image and voice search, barcode scanning, and easy account management for placing and tracking orders.
