249+ iOS apps curated and reviewed
Whether you're new to flow test calculator or looking for an upgrade, our curated collection of 249+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.1★ (63) | No | Yes | Oct 2026 | |
| 2 |  | Free | 5.0★ (4) | No | No | Oct 2026 | |
| 3 |  | Free | 4.4★ (14) | No | No | Oct 2026 | |
| 4 |  | Free | 4.6★ (5) | No | No | Oct 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | $1.99 | — | No | No | Oct 2026 | |
| 7 |  | Free | — | No | No | May 2026 | |
| 8 |  | Free | — | No | Yes | May 2026 |
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 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.
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.
