# FlowAnalyzer vs Hydrant Flow Test Calculator

The clearest difference is in-app purchases: Hydrant Flow Test Calculator at none against FlowAnalyzer's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FlowAnalyzer sells 1 one-off in-app purchase. Hydrant Flow Test Calculator asks for nothing beyond the download.

FlowAnalyzer ships an update every 6 weeks, Hydrant Flow Test Calculator every 5 weeks. The most recent releases landed on September 13, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | FlowAnalyzer | 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 28 MB | 38 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Transparent Blue Water LLC](https://appshunter.io/developer/1847968351) | [Saleel Anthrathodiyil](https://appshunter.io/developer/1879071811) |

## What reviewers say

### FlowAnalyzer

[App page](https://appshunter.io/ios/app/flowanalyzer-water-network/id6754671981)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlowAnalyzer Pro | $9.99 | one-time |


### 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 FlowAnalyzer free?

FlowAnalyzer is free to download, with in-app purchases available.

### Is Hydrant Flow Test Calculator free?

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

### Do FlowAnalyzer or Hydrant Flow Test Calculator have ads?

Neither FlowAnalyzer nor Hydrant Flow Test Calculator shows ads.

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

FlowAnalyzer ships an update every 6 weeks, and Hydrant Flow Test Calculator every 5 weeks. Most recently, FlowAnalyzer was updated on September 13, 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.*