# Shock Math Calculator vs STRUCT

The clearest difference is device support: STRUCT at 3 against Shock Math Calculator's 1. STRUCT also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Shock Math Calculator ships an update every 3 weeks, STRUCT every 4 weeks. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Shock Math Calculator | STRUCT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/struct-ar/id6476420507/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | — | Free |
| Size | 4 MB | 165 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gregory Manley](https://appshunter.io/developer/1650623300) | [UVA Apps, LLC](https://appshunter.io/developer/881105800) |

## What reviewers say

### Shock Math Calculator

[App page](https://appshunter.io/ios/app/shock-math-calculator/id6443923018)

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

**In-app purchases:** none


### STRUCT

[App page](https://appshunter.io/ios/app/struct-ar/id6476420507)

Explore structural engineering concepts in augmented reality. Visualize how beams and bridges react to loads in your own space, offering an interactive and engaging learning experience for students. No complex setup required, just your device and camera.

**Highlights:** Augmented reality visualization, Interactive load simulations, Pre-loaded finite element models, Classroom and independent learning tool, 3D model interaction, Camera access for AR

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shock Math Calculator free?

Shock Math Calculator is free to download, with no in-app purchases.

### Is STRUCT free?

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

### Do Shock Math Calculator or STRUCT have ads?

Neither Shock Math Calculator nor STRUCT shows ads.

### Which is updated more often, Shock Math Calculator or STRUCT?

Shock Math Calculator ships an update every 3 weeks, and STRUCT every 4 weeks. Most recently, Shock Math Calculator was updated on September 18, 2026 and STRUCT on September 12, 2026.

---

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