# iSectionLite vs FlowAnalyzer Viewer

The clearest difference is in-app purchases: iSectionLite at none against FlowAnalyzer Viewer's 1. iSectionLite also leads on iOS requirement (8.0 vs 15.0). FlowAnalyzer Viewer's advantage is update cadence (every 2 months vs every 46 months). On price, ads and device support there is nothing between them.

Both are free to download. FlowAnalyzer Viewer sells 1 one-off in-app purchase. iSectionLite asks for nothing beyond the download.

iSectionLite ships an update every 46 months, FlowAnalyzer Viewer every 2 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | iSectionLite | FlowAnalyzer Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (12 ratings)](https://appshunter.io/ios/app/isectionlite/id320141628/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 0 MB | 1 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ahmj](https://appshunter.io/developer/304905561) | [Transparent Blue Water LLC](https://appshunter.io/developer/1847968351) |

## What reviewers say

### iSectionLite

[App page](https://appshunter.io/ios/app/isectionlite/id320141628)

This engineering app calculates mechanical and structural properties for built-up section members. It supports various international steel shapes and allows input and output in both metric and imperial units.

**Highlights:** Calculates moment of inertia, modulus of section, radius of gyration, area, and weight, Supports European, American, Canadian, and British steel shapes, Input and output in mm or inch units, Calculations in principal axes, Light version with limitations on hot rolled library and flange dimensions

**Features:** macOS Compatibility

**In-app purchases:** none


### FlowAnalyzer Viewer

[App page](https://appshunter.io/ios/app/flowanalyzer-viewer/id6754879365)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HydroViewer Pro | $2.99 | one-time |


## Frequently asked questions

### Is iSectionLite free?

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

### Is FlowAnalyzer Viewer free?

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

### Do iSectionLite or FlowAnalyzer Viewer have ads?

Neither iSectionLite nor FlowAnalyzer Viewer shows ads.

### Which is updated more often, iSectionLite or FlowAnalyzer Viewer?

iSectionLite ships an update every 46 months, and FlowAnalyzer Viewer every 2 months. Most recently, iSectionLite was updated on October 23, 2026 and FlowAnalyzer Viewer on October 21, 2026.

---

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