# FLOW T vs Hydrant Flow Test Calculator

The clearest difference is update cadence: Hydrant Flow Test Calculator at every 5 weeks against FLOW T's every 2 months. FLOW T's advantage is iOS requirement (13 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FLOW T ships an update every 2 months, Hydrant Flow Test Calculator every 5 weeks. Both last shipped on September 20, 2026.

## The numbers

| Metric | FLOW T | Hydrant Flow Test Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/hydrant-flow-test-calculator/id6759503350/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 75 MB | 38 MB |
| Requires iOS | **13** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thiran Technologies Private Limited](https://appshunter.io/developer/1475867801) | [Saleel Anthrathodiyil](https://appshunter.io/developer/1879071811) |

## What reviewers say

### FLOW T

[App page](https://appshunter.io/ios/app/flow-t-eam-we/id6739119234)

**Features:** macOS Compatibility

**In-app purchases:** none


### Hydrant Flow Test Calculator

[App page](https://appshunter.io/ios/app/hydrant-flow-test-calculator/id6759503350)

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.

**Highlights:** Calculate total GPM from pitot pressures, Configure outlet diameter and hydrant coefficients, Extrapolate flow with Supply vs Demand curve, Plot demand points for PASS/FAIL analysis, Save test results with date, time, and project info, Log hydrant locations via GPS, Review saved test history

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FLOW T free?

FLOW T is free to download, with no in-app purchases.

### Is Hydrant Flow Test Calculator free?

Hydrant Flow Test Calculator is free to download, with no in-app purchases.

### Do FLOW T or Hydrant Flow Test Calculator have ads?

Neither FLOW T nor Hydrant Flow Test Calculator shows ads.

### Which is updated more often, FLOW T or Hydrant Flow Test Calculator?

FLOW T ships an update every 2 months, and Hydrant Flow Test Calculator every 5 weeks. Most recently, FLOW T was updated on September 20, 2026 and Hydrant Flow Test Calculator on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*