Comparison

A vs UHP.x

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

Head to head
About

A

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
Read full description

The Space Frame is considered to be the complicated structure due to the members of such frames may be oriented in any directions in three-dimensional space more over the external loads oriented in any arbitrary directions can be applied to joints, as well as members. A-Frame 3D is an app that is so easy to use yet so powerful!!! Data input is just as simple as - Node coordination (x, y, z) - Member alignment (node-i to node-j) - Applied loads to each nodes and members - Material properties E, G, Iy, Ix, J and A values Not only A-Frame can solve the Space Frame but the app also showing the calculation step by step for the result data so that you can counter check the correctness of the calculation. A-Frame 3D is an application for structural engineers or engineering students who need a tool to analyze the space frames. A-Frame 3D solves the space frame by using the Stiffness Matrix Method, providing following features: - The frame members can be aligned in any direction in space. - Load applied to each members can oriented in any direct around the frame members. - Equilibrium check for Forces & Bending Moments - Deformation of each points along the members. - Shear Force Diagram (S.F.D) and Bending Moment Diagram (B.M.D) of each sections along each members in 3D.

About

UHP.x

Features
Read full description

Design Ultra-High Performance Concrete mixes with precision — on your iPhone, iPad, and Apple Silicon Mac. UHP.x is a professional-grade tool for structural engineers, researchers, and laboratory technicians working with UHPC. Built around the Absolute Volume Method, it handles the complex calculations so you can focus on the mix. Design with Confidence Input your material properties and target performance parameters. UHP.x calculates proportions, volumes, and masses using verified UHPC methodology — instantly, entirely on-device, with no internet connection required. Built for the Lab and the Field - Absolute Volume Method mix design engine - Multi-component material library with full customization - Save and manage multiple mix designs with full history - Export publication-ready PDF reports - UHPC curing tracker with timeline monitoring - Works fully offline — your data never leaves your device For Professionals Whether you're running trials in the lab, preparing a research paper, or designing a structural element, UHP.x gives you the rigor of a desktop calculation tool in your pocket. Unlock Full Access Download free and explore the app. Unlock unlimited mix saves, full library management, unlimited curing tracking, and clean PDF exports with a single one-time purchase.

Screenshots

A4 screens
UHP.x4 screens

Verdict

The call

The clearest difference is price: UHP.x at Free against A's $9.99. UHP.x also leads on update cadence (every 3 days vs fortnightly). A's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement 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

UHP.x is free to download; A costs $9.99 up front. UHP.x sells 1 one-off in-app purchase. A asks for nothing beyond the download.

UpkeepUpdate frequency

A ships an update fortnightly, UHP.x every 3 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
A versus UHP.x: the parameters behind the verdict, then further details
ParameterAUHP.x
Price$9.99Free — better
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.617.6 — better
Further details — not scored
Size23 MB4 MB
Age rating4+4+
DeveloperJutarus RatanasethakulMohammed Fasil

In-app purchases

None

A

No in-app purchases

1 purchases

UHP.x

One-time1
  • UHP.x Unlock$14.99

Questions

Is A free?
A costs $9.99, with no in-app purchases.
Is UHP.x free?
UHP.x is free to download, with in-app purchases available.
Do A or UHP.x have ads?
Neither A nor UHP.x shows ads.
Which is updated more often, A or UHP.x?
A ships an update fortnightly, and UHP.x every 3 days. Most recently, A was updated on October 26, 2026 and UHP.x on October 24, 2026.

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