Sketchalyze vs TopOpt 3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sketchalyze
This app allows users to sketch and analyze structural systems directly on their iPad. It provides instant visualization of analysis results like deformations and section forces, performing finite element analysis in the background. Users can define cross-sections, apply loads, and visualize results for linear and nonlinear analyses.
- Sketch structural systems
- Instant analysis results visualization
- Finite element analysis
- Tabulated and user-defined cross sections
- Truss and beam element types
- Linear and nonlinear analysis
- Load-deflection curves
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Sketch and analyze structural systems on the iPad. In Sketchalyze, Analysis results such as deformations and section forces are visualized instantly, a finite element analysis is performed in the background whenever needed. Features: - Tabulated and user defined cross sections - Truss and beam element types - Line and point loads on beam elements - Listing of model and result data - Share models via email and Facebook - Linear and geometrical nonlinear (load or displacement controlled) analysis - Load-deflection curves for nonlinear analysis - Visualization of kinematic modes for unsufficiently constrained systems - Background image for creating models of structures from photographs or drawings
TopOpt 3D
Perform 3D structural optimization using topology optimization on your iPad or iPhone. Adjust loads, supports, volume fractions, and grid sizes to observe design evolution. Experiment with different parameters to discover new minimums.
- 3D topology optimization
- Adjustable loads and supports
- Variable volume fractions
- Experiment with grid sizes
- Design evolution visualization
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Use your iPad/iPhone to perform structural optimization by the topology optimization method in 3D ! Move loads and supports and watch the design evolve to a new minimum. Experiment with different volume fractions and grid sizes and see what happens.
Screenshots
Verdict
The clearest difference is review sentiment: Sketchalyze at 60% against TopOpt 3D's 0%. Sketchalyze also leads on rating (5.0 vs 3.7). TopOpt 3D's advantage is update cadence (every 6 weeks vs every 13 months) and iOS requirement (11.0 vs 15.6). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sketchalyze holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews point the same way: 60% of Sketchalyze's written reviews are positive against 0% of TopOpt 3D's.
Sketchalyze ships an update every 13 months, TopOpt 3D every 6 weeks. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.
| Parameter | Sketchalyze | TopOpt 3D |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 60.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 7 — better | 3 |
| Update frequency | Every 13 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Duy Truong | DTU Mechanical Engineering |
Customer experience
Sketchalyze
TopOpt 3D
In-app purchases
Sketchalyze
No in-app purchases
TopOpt 3D
No in-app purchases
Questions
Is Sketchalyze free?
Is TopOpt 3D free?
Which has better reviews, Sketchalyze or TopOpt 3D?
Do Sketchalyze or TopOpt 3D have ads?
Which is updated more often, Sketchalyze or TopOpt 3D?
Other comparisons
