Comparison

A vs PatchPrinter

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

Head to head
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.

About

PatchPrinter

View your preproduction files on your iOS device without needing hard copies. Easily open and share PatchPrinter files from various sources like email or Airdrop. Navigate between files seamlessly in the organized list.

Highlights
  • View preproduction files
  • Open from email attachments
  • Open from WhatsApp
  • Open via Airdrop
  • Easy file switching
  • Share files with colleagues
Features
Read full description

Open your PatchPrinter (www.PatchPrinter.com) file and have a look at your preproduction without the need of using hardcopies. PatchPrinter for iOS shows all of the information which is available in the PatchPrinter file. You can open your PatchPrinter file from an email attachment, WhatsApp message, Airdrop, etc. Switching between files is easy in the Files list. Here you also can share your PatchPrinter file with your colleagues.

Screenshots

A4 screens
PatchPrinter4 screens

Verdict

The call

The clearest difference is review sentiment: PatchPrinter at 100% against A's 0%. PatchPrinter also leads on price (Free vs $9.99) and iOS requirement (14.5 vs 18.6). A's advantage is update cadence (every 2 weeks vs every 3 months). On ads, 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

PatchPrinter 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

A ships an update every 2 weeks, PatchPrinter every 3 months. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
A versus PatchPrinter: the parameters behind the verdict, then further details
ParameterAPatchPrinter
Price$9.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.614.5 — better
Further details — not scored
Size10 MB1 MB
Age rating4+4+
DeveloperJutarus RatanasethakulBart van Stiphout

Customer experience

A

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

PatchPrinter

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

A

No in-app purchases

None

PatchPrinter

No in-app purchases

Questions

Is A free?
A costs $9.99, with no in-app purchases.
Is PatchPrinter free?
PatchPrinter is free to download, with no in-app purchases.
Do A or PatchPrinter have ads?
Neither A nor PatchPrinter shows ads.
Which is updated more often, A or PatchPrinter?
A ships an update every 2 weeks, and PatchPrinter every 3 months. Most recently, A was updated on September 9, 2026 and PatchPrinter on September 21, 2026.

Other comparisons