# iSectionLite vs SSFMfree

The clearest difference is ads: iSectionLite at none against SSFMfree's shown. iSectionLite also leads on iOS requirement (8.0 vs 15.0). SSFMfree's advantage is update cadence (every 11 months vs every 46 months). On price, 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.

iSectionLite ships an update every 46 months, SSFMfree every 11 months. The most recent releases landed on October 23, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | iSectionLite | SSFMfree |
| --- | --- | --- |
| 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 | No |
| Ads | **No** | Yes |
| Update frequency | Every 46 months | **Every 11 months** |
| Monetization | Free | — |
| Size | 0 MB | 11 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ahmj](https://appshunter.io/developer/304905561) | [sigeyosi kanenishi](https://appshunter.io/developer/629958778) |

## 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


### SSFMfree

[App page](https://appshunter.io/ios/app/ssfmfree/id1476228180)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iSectionLite free?

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

### Is SSFMfree free?

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

### Do iSectionLite or SSFMfree have ads?

SSFMfree shows ads; iSectionLite does not.

### Which is updated more often, iSectionLite or SSFMfree?

iSectionLite ships an update every 46 months, and SSFMfree every 11 months. Most recently, iSectionLite was updated on October 23, 2026 and SSFMfree on October 12, 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.*