# SCALE Structural Calculations vs Scope AI

The clearest difference is in-app purchases: Scope AI at none against SCALE Structural Calculations's 2. Scope AI also leads on update cadence (weekly vs monthly). SCALE Structural Calculations's advantage is iOS requirement (12.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. SCALE Structural Calculations sells 2 in-app purchases, starting at $50.99 per month. Scope AI asks for nothing beyond the download.

SCALE Structural Calculations ships an update monthly, Scope AI weekly. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SCALE Structural Calculations | Scope AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 82 MB | 71 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Fitzroy Systems Limited](https://appshunter.io/developer/1225174135) | [Scope Inspection Ltd](https://appshunter.io/developer/1788577841) |

## 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 |


### Scope AI

[App page](https://appshunter.io/ios/app/scope-ai/id6780989250)

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

**In-app purchases:** none


## Frequently asked questions

### Is SCALE Structural Calculations free?

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

### Is Scope AI free?

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

### Do SCALE Structural Calculations or Scope AI have ads?

Neither SCALE Structural Calculations nor Scope AI shows ads.

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

SCALE Structural Calculations ships an update monthly, and Scope AI weekly. Most recently, SCALE Structural Calculations was updated on October 7, 2026 and Scope AI on October 6, 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.*