Comparison

iTruss vs A

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iTruss

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
Read full description

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/

About

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.

Highlights
  • 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
Features
Read full description

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

iTruss4 screens
A4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
iTruss versus A: the parameters behind the verdict, then further details
ParameteriTrussA
PriceFree — better$9.99
Rating4.1 (15 ratings) — better—
Positive reviews—0.0% of reviews
Number of ratings15 — better—
Update frequencyEvery 23 monthsEvery 2 weeks — better
Ads—No
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS11.0 — better18.6
Further details — not scored
Size70 MB10 MB
Age rating4+4+
DeveloperXtreme Structures & Fabrication LLCJutarus Ratanasethakul

Customer experience

iTruss

All ratings15 ratings
Positive73.3%
Neutral6.7%
Negative20.0%

A

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

iTruss

No in-app purchases

None

A

No in-app purchases

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 is updated more often, iTruss or A?
iTruss ships an update every 23 months, and A every 2 weeks. Most recently, iTruss was updated on June 10, 2026 and A on September 26, 2026.

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