A vs Deflection Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 3D space frame analysis
- Stiffness Matrix Method
- Step-by-step calculation display
- Equilibrium check
- Deformation visualization
- Shear Force & Bending Moment Diagrams
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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.
Deflection Pro
This advanced structural analysis calculator assists engineers with beam, truss, and frame design. It generates load combinations based on American and European standards and performs detailed beam column capacity checks. Results are presented intuitively, with options to export to PDF and save files.
- Beam, truss, and frame analysis
- Load combination generation (US & EU standards)
- Beam column capacity checks (flexure, shear, tension, compression)
- Detailed design checks for various buckling types
- PDF export
- Save to external file
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Deflection Pro is an advanced structural analysis calculator for beam, truss, and frame design. The software is designed to be simple, intuitive, and useful for structural engineers worldwide. Like our other apps, it is designed to run on all your devices. LOAD COMBINATIONS Deflection Pro generates common load combinations based on American and European standards. Simply select a desired design method in the settings page and assign a category to each load. The results are seamlessly aggregated and integrated into the same charts and interface as if you were designing a simple beam case. BEAM COLUMN CAPACITY CHECKS Deflection Pro calculates beam column strength capacity for flexure, shear, tension, and compression based on the AISC specification. The software accurately reproduces tabulated values in steel construction manuals. Flexure Design • Yielding • Lateral torsional buckling • Local buckling • Flange local buckling • Compression flange local buckling • Web local buckling • Compression tee stem local buckling Shear Design • Web shear strength • Web shear strength, considering field action Tension Design • Yielding tensile strength • Rupture tensile strength Compression Design • Flexural buckling • Torsional buckling OTHER FEATURES Since this is our latest and greatest structural analysis app, we are actively improving it and adding new functionality. It receives more frequent updates than other tiers of our software. Other advanced functionality include the ability to directly export to PDF and to save to an external file for backup and sharing. CONTACT We like to hear from you! Please email contact@ketchep.com if you have any issues, questions, or comments.
Screenshots
Verdict
The clearest difference is price: A at $9.99 against Deflection Pro's $19.99. A also leads on update cadence (every 10 days vs every 5 weeks). Deflection Pro's advantage is rating (4.7 vs 1.0) and ratings volume (16 vs 1). On ads, in-app purchases and monetization model 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
A costs $9.99 and Deflection Pro $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Deflection Pro holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Deflection Pro has 16 ratings behind it against 1, so its average is the more settled of the two.
A ships an update every 10 days, Deflection Pro every 5 weeks. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.
| Parameter | A | Deflection Pro |
|---|---|---|
| Price | $9.99 — better | $19.99 |
| Rating | 1.0 (1 ratings) | 4.7 (16 ratings) — better |
| Positive reviews | — | 69.2% of reviews |
| Number of ratings | 1 | 16 — better |
| Update frequency | Every 10 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 163 MB |
| Age rating | 4+ | 4+ |
| Developer | Jutarus Ratanasethakul | Blue Ketchep |
Customer experience
A
Deflection Pro
In-app purchases
A
No in-app purchases
Deflection Pro
No in-app purchases








