3+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our hydrant flow test report list covers 3+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $19.99 | — | No | Yes | Jun 2026 | |
| 2 |  | Free | 5.0★ (3) | No | No | Jul 2026 | |
| 3 |  | Free | 4.1★ (63) | No | Yes | 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.