iTruss vs A
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iTruss
Calculate structural loads, spans, and truss requirements for construction projects directly from your iPhone. This tool simplifies complex engineering calculations for field use.
- Load calculation
- Span determination
- Truss analysis
- Field use optimization
- Engineering calculations
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Determine load, span or truss needed for your job in the field with this exciting new iPhone® application from XSF. EULA link https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
A
Analyze space trusses with this tool designed for structural engineers and students. It offers detailed solutions including node displacements, member forces, and stress, with an intuitive 3D interface and an assistant for complex truss creation.
- 3D graphics and UI
- Node displacements, member forces, and stress calculations
- Truss Assistant Creator for automatic generation
- Direct Stiffness Matrix solver
- Multiple viewing options (Proportion, Equal, Wireframe)
- PDF report generation
- Support for large space trusses
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A-Truss3D Pro is a structural analysis and visualization app for 3D truss systems. Create, edit, calculate, and review truss models directly on iPad with an interactive 3D canvas, engineering units, material properties, load cases, and direct stiffness method results. Design trusses by defining nodes, members, supports, materials, and loads. Visualize geometry, member labels, load arrows, reactions, deformations, dimensions, and force states with clear 3D controls. Review calculated displacements, reactions, member forces, stiffness matrices, equilibrium checks, and summary reports in one workflow. Key Features • Interactive 3D truss and double-layer space truss modeling • Node, member, material, load, and support editing • Direct stiffness method calculation • Member force results for tension, compression, and zero-force members • Node displacement and reaction results • Deformation visualization • Stiffness matrix and equilibrium report views • Custom unit templates and precision settings • Sample truss catalog for quick starting points • PDF report generation and preview • Canvas display controls for labels, dimensions, loads, reactions, font, and scale A-Truss3D Pro is built for engineering students, educators, and structural professionals who need a focused tool for creating and checking 3D truss behavior.
Screenshots
Verdict
The clearest difference is price: iTruss at Free against A's $9.99. iTruss also leads on iOS requirement (11.0 vs 18.6). A's advantage is update cadence (every 2 weeks vs every 23 months). On in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 ships an update every 23 months, A every 2 weeks. The most recent releases landed on June 10, 2026 and September 26, 2026 respectively.
| Parameter | iTruss | A |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.1 (15 ratings) — better | — |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 15 — better | — |
| Update frequency | Every 23 months | Every 2 weeks — better |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 11.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 70 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Xtreme Structures & Fabrication LLC | Jutarus Ratanasethakul |
Customer experience
iTruss
A
In-app purchases
iTruss
No in-app purchases
A
No in-app purchases









