250+ iOS apps curated and reviewed
Finding the right plumbing formulator apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (7) | No | Yes | Aug 2026 | |
| 2 |  | Free | 4.6★ (409) | Yes | Yes | Sep 2026 | |
| 3 |  | Free | — | No | No | May 2026 | |
| 4 |  | Free was $7.99 | 4.7★ (231) | No | Yes | Aug 2026 | |
| 5 |  | Free | 5.0★ (10) | No | No | May 2026 | |
| 6 |  | Free | — | No | No | May 2026 | |
| 7 |  | Free | — | No | No | May 2026 | |
| 8 |  | Free | 3.7★ (12) | No | Yes | Aug 2026 |
This professional calculator app provides over 200 formulas, calculators, and reference materials for plumbers, HVAC technicians, and mechanical contractors. It covers a wide range of calculations for water flow, piping, drainage, water heaters, pumps, and more, all in one pocket-sized tool.
A powerful construction calculator designed for tradespeople. It offers a wide range of tools for estimating, layout, framing, and jobsite calculations, helping to save time and improve accuracy. Supports both imperial and metric units.
