249+ iOS apps curated and reviewed
Finding the right orifice flow rate calculator apps can be overwhelming with so many options. We've analyzed 249+ 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 | 4.9★ (98) | No | No | Sep 2026 | |
| 2 |  | Free | — | No | No | May 2026 | |
| 3 |  | $3.99 | 4.0★ (1) | No | No | Sep 2026 | |
| 4 |  | Free | 4.9★ (7) | No | Yes | Sep 2026 | |
| 5 |  | Free | 4.5★ (102) | No | Yes | Sep 2026 | |
| 6 |  | Free | 5.0★ (12) | No | Yes | Sep 2026 | |
| 7 |  | $0.99 | 4.3★ (44) | No | No | Aug 2026 | |
| 8 |  | Free | 4.0★ (1) | No | No | May 2026 |
Easily calculate natural gas orifice flow rates using the AGA 3 standard. This utility app allows users to determine MCF production for a given duration, save calculations, and export data to CSV. It functions offline, requiring no cell service.
Calculate gas flow through an Orifice Meter using AGA 8 compressibility and AGA 3 flow calculations. Supports both metric and imperial units, remembers input values, and generates shareable PDF reports.
Calculate fluid flow rates in pipes and conduits using orifice plates. Supports common industrial fluids and custom fluid properties, with adjustable units and orifice types. Ideal for engineers and designers.
