# A vs Spread Footing

The clearest difference is update cadence: A at every 10 days against Spread Footing's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

A costs $9.99 and Spread Footing $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

A ships an update every 10 days, Spread Footing every 4 months. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | A | Spread Footing |
| --- | --- | --- |
| Price | $9.99 | $9.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/a-frame3d-pro/id1207537713/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Paid | — |
| Size | 23 MB | 4 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jutarus Ratanasethakul](https://appshunter.io/developer/1454380236) | [Rab Elias](https://appshunter.io/developer/918944482) |

## What reviewers say

### A

[App page](https://appshunter.io/ios/app/a-frame3d-pro/id1207537713)

Analyze complex 3D space frames with this powerful yet easy-to-use application. Input node coordinates, member alignments, and material properties to solve structures and view step-by-step calculations. Visualize deformations and generate shear force and bending moment diagrams.

**Highlights:** 3D space frame analysis, Stiffness Matrix Method, Step-by-step calculation display, Equilibrium check, Deformation visualization, Shear Force & Bending Moment Diagrams

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

**In-app purchases:** none


### Spread Footing

[App page](https://appshunter.io/ios/app/spread-footing/id1493456986)

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

**In-app purchases:** none


## Frequently asked questions

### Is A free?

A costs $9.99, with no in-app purchases.

### Is Spread Footing free?

Spread Footing costs $9.99, with no in-app purchases.

### Do A or Spread Footing have ads?

Neither A nor Spread Footing shows ads.

### Which is updated more often, A or Spread Footing?

A ships an update every 10 days, and Spread Footing every 4 months. Most recently, A was updated on September 10, 2026 and Spread Footing on September 17, 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.*