# Open Channel Flow Pro vs FlowAnalyzer

The clearest difference is price: FlowAnalyzer at Free against Open Channel Flow Pro's $2.99. Open Channel Flow Pro's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

FlowAnalyzer is free to download; Open Channel Flow Pro costs $2.99 up front. FlowAnalyzer sells 1 one-off in-app purchase. Open Channel Flow Pro asks for nothing beyond the download.

Open Channel Flow Pro ships an update every 2 months, FlowAnalyzer every 6 weeks. Both last shipped on September 13, 2026.

## The numbers

| Metric | Open Channel Flow Pro | FlowAnalyzer |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/open-channel-flow-pro/id1576457515/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Paid | — |
| Size | 2 MB | 28 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexius Academia](https://appshunter.io/developer/1209840214) | [Transparent Blue Water LLC](https://appshunter.io/developer/1847968351) |

## What reviewers say

### Open Channel Flow Pro

[App page](https://appshunter.io/ios/app/open-channel-flow-pro/id1576457515)

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.

**Highlights:** Basic Hydraulic Parameters, Flow Characteristics, Critical Flow Analysis, Rating Curves, Wetted Perimeter, Area, Hydraulic Radius, Velocity, Froude Number, Hydraulic Depth

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Open Channel Flow Pro free?

Open Channel Flow Pro costs $2.99, with no in-app purchases.

### Is FlowAnalyzer free?

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

### Do Open Channel Flow Pro or FlowAnalyzer have ads?

Neither Open Channel Flow Pro nor FlowAnalyzer shows ads.

### Which is updated more often, Open Channel Flow Pro or FlowAnalyzer?

Open Channel Flow Pro ships an update every 2 months, and FlowAnalyzer every 6 weeks. Most recently, Open Channel Flow Pro was updated on September 13, 2026 and FlowAnalyzer on September 13, 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.*