A vs Deflection Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A
Analyze 2D truss problems quickly on your mobile device. Create standard or custom truss structures, manage material properties, and generate PDF reports with flexible unit options.
- Standard truss templates (18 types)
- Custom truss creation
- Flexible unit system
- Built-in material library
- PDF reporting and email export
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The easy and fastest way to analyze the 2D-Truss problem right on your iPhone & iPod Touch. Featuring: • Standard Truss Templates: with the standard truss template (18 types of truss for initial version) , you can easily create and config your truss as required. • "Custom Truss"; If the built-in standard truss template doesn't match your requirement, "Custom" your own Truss is also easy to create due to the Node & Element generating features. • Unit Flexibility: very flexible in Units system, you can choose any units at your convenience without the requirement to restart the application and the unit system is saved per your truss's project. For example you use m. as node coordinations while you choose mm. for the deflection of the nodes or you can even choose in. or ft. for nodes's deflection (if you really need). • Buit-in material sections library where you can adjust any material's properties with no effect to other truss project. The options to create your own material library will be available for the next update. • PDF Reporting: All result information of your truss are shown in PDF and also you can email this result.
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 review sentiment: Deflection Pro at 69% against A's 15%. Deflection Pro also leads on rating (4.7 vs 2.3) and ratings volume (16 vs 3). A's advantage is price ($4.99 vs $19.99) and chart position (#191 vs unranked). On update cadence, 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 $4.99 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 2.3. That said, the two scores are not equally well evidenced: Deflection Pro has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 15% of A's written reviews are positive against 69% of Deflection Pro's.
A ships an update every 6 weeks, Deflection Pro every 5 weeks. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.
| Parameter | A | Deflection Pro |
|---|---|---|
| Price | $4.99 — better | $19.99 |
| Rating | 2.3 (3 ratings) | 4.7 (16 ratings) — better |
| Positive reviews | 15.0% of reviews | 69.2% of reviews — better |
| Number of ratings | 3 | 16 — better |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #191 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 47 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







