250+ iOS apps curated and reviewed
If you already know Hydrant Flow Test Calculator, this is the deeper bench. 250+ hydrant flow test calculator apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (3) | No | No | Jul 2026 |
| 2 |  | Free | 4.1★ (63) | No | Yes | May 2026 |
| 3 |  | Free | 4.6★ (5) | No | No | May 2026 |
| 4 |  | Free | — | No | No | May 2026 |
| 5 |  | Free | 4.5★ (101) | No | Yes | Aug 2026 |
| 6 |  | Free | 4.5★ (12) | No | No | Jul 2026 |
| 7 |  | $0.99 | 4.1★ (17) | No | No | Jun 2026 |
| 8 |  | $1.99 | — | No | No | May 2026 |
This tool simplifies hydrant flow testing by calculating total GPM from pitot pressures. It allows for outlet settings, flow extrapolation with a Supply vs Demand curve, and plotting demand points for PASS/FAIL results. Save test data with location and project details for future reference.
Calculate hydrant flow rates and determine maximum water system flow. This tool uses a standard variation of the Hazen-Williams formula for calculations. Imperial units are currently supported, with metric coming soon.
This educational app provides calculations for water flow using friction loss, smooth nozzle, NFA, and Iowa formulas. It's designed for professionals and students needing quick and accurate fluid dynamics computations.
Calculate fluid flow rate and pressure loss in pipes. This app helps engineers determine pipe diameter, maximum pipe length, and friction loss for both liquid and gas flows, including fittings and elevation changes. Results can be shared as Excel or PDF reports.
This utility app provides essential calculators for accurate flow testing, covering various nozzle types, pump discharge pressures, and fire flow formulas. It also includes direct links to helpful instructional videos.
This utility app assists firefighters by calculating required fire flow for structure fires and estimating pump discharge pressures for various hose setups. It offers two methods for fire flow estimation and a detailed pump pressure calculation tool for emergency response and pre-planning.
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.
This app assists firefighters in calculating water flow rates, pump discharge pressures, and nozzle reactions. It can be used with a Bluetooth flow meter or as a standalone calculator with established fire flow formulas. Educational videos on water flow are also included.
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.
This hydraulic engineering calculator simplifies complex open channel flow calculations for professionals and students. It provides accurate results for basic parameters, flow characteristics, critical flow analysis, and rating curves.
This utility app calculates the maximum pipe length for a given pressure loss, flow rate, and pipe diameter. It offers comprehensive results, customizable databases for materials and fluids, and supports both Imperial and Metric units. Engineers can generate professional reports and save results for later use.
This mobile tool helps professionals calculate pipe diameter and flow velocity on-site. It offers intelligent design and a user-friendly interface for quick flow-related calculations, providing flexibility without needing an expert nearby.