# iTruss vs A

The clearest difference is price: iTruss at Free against A's $9.99. iTruss also leads on rating (4.1 vs 1.0) and ratings volume (15 vs 1). A's advantage is update cadence (fortnightly vs every 23 months). On in-app purchases and device support there is nothing between them.

iTruss is free to download; A costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iTruss holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: iTruss has 15 ratings behind it against 1, so its average is the more settled of the two.

iTruss ships an update every 23 months, A fortnightly. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | iTruss | A |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.1 (15 ratings)](https://appshunter.io/ios/app/itruss/id363376468/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/a-frame3d-pro/id1207537713/reviews) |
| Number of ratings | **15** | 1 |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 23 months | **Fortnightly** |
| Monetization | **Free** | Paid |
| Size | 70 MB | 23 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Xtreme Structures & Fabrication LLC](https://appshunter.io/developer/363376471) | [Jutarus Ratanasethakul](https://appshunter.io/developer/1454380236) |

## What reviewers say

### iTruss

[App page](https://appshunter.io/ios/app/itruss/id363376468)

Calculate structural loads, spans, and truss requirements for construction projects directly from your iPhone. This tool simplifies complex engineering calculations for field use.

**Highlights:** Load calculation, Span determination, Truss analysis, Field use optimization, Engineering calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is iTruss free?

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

### Is A free?

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

### Which has better reviews, iTruss or A?

iTruss is rated higher. iTruss averages 4.1 out of 5 from 15 ratings, while A averages 1.0 from 1 ratings.

### Which is updated more often, iTruss or A?

iTruss ships an update every 23 months, and A fortnightly. Most recently, iTruss was updated on October 2, 2026 and A 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.*