# SCALE Structural Calculations vs WriteGenius

The clearest difference is update cadence: WriteGenius at every 4 days against SCALE Structural Calculations's monthly. WriteGenius also leads on device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SCALE Structural Calculations sells 2 in-app purchases, starting at $50.99 per month and WriteGenius sells 6 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

SCALE Structural Calculations ships an update monthly, WriteGenius every 4 days. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SCALE Structural Calculations | WriteGenius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/writegenius-ai-article-writer/id6467768489/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 82 MB | 73 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fitzroy Systems Limited](https://appshunter.io/developer/1225174135) | [Demcode SRL SB](https://appshunter.io/developer/929093392) |

## What reviewers say

### SCALE Structural Calculations

[App page](https://appshunter.io/ios/app/scale-structural-calculations/id1225174136)

This app provides structural engineers with tools to perform calculations and generate component details for various structural elements. It offers a comprehensive library of proformas and expert systems for reinforced concrete, steelwork, timber, and masonry detailing, supporting both Eurocodes and British Standards.

**Highlights:** Structural calculations for beams, columns, slabs, Component detailing for steel, concrete, masonry, timber, Library of over 600 proforma calculations, Expert systems for detailing (LUCID, SPADE), 2D/3D elastic analysis (NL-STRESS), PDF and DOCX output for submission, Support for Eurocodes and British Standards

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full subscription to SCALE | $50.99 | per month |
| Full subscription to SCALE | $299.99 | per year |


### WriteGenius

[App page](https://appshunter.io/ios/app/writegenius-ai-article-writer/id6467768489)

This AI-powered writing assistant transforms your documents and web links into polished articles and social media posts. It offers multilingual support, proofreading, and a custom writing style to help you create authoritative content efficiently.

**Highlights:** Document and link to article conversion, Social media post generation, Multilingual support (40 languages), Proofreading and plagiarism detection, Customizable writing style, Powered by GPT-4 and Bard

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $7.99 | per month |
| Annual Premium | $69.99 | per year |
| 10 Credits | $0.99 | one-time |
| 80 Credits (12% Discount) | $5.99 | one-time |
| 300 Credits (16% Discount) | $22.99 | one-time |
| 600 Credits (26% Discount) | $39.99 | one-time |


## Frequently asked questions

### Is SCALE Structural Calculations free?

SCALE Structural Calculations is free to download, with in-app purchases available.

### Is WriteGenius free?

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

### Do SCALE Structural Calculations or WriteGenius have ads?

Neither SCALE Structural Calculations nor WriteGenius shows ads.

### Which is updated more often, SCALE Structural Calculations or WriteGenius?

SCALE Structural Calculations ships an update monthly, and WriteGenius every 4 days. Most recently, SCALE Structural Calculations was updated on October 7, 2026 and WriteGenius on October 3, 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.*