Sketchalyze vs Mobile Multibody Dynamics
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
Mobile Multibody Dynamics
This app offers a graphical interface for mechanical engineers and physicists to model and simulate multibody dynamics. It bridges the gap between manual equation derivation and complex CAD-like software, serving as an educational tool for students and professionals.
- Graphical modeling interface
- Simulation of multibody dynamics
- Educational resource for engineering students
- Export custom Python code
- Accessible alternative to professional software
- On-device modeling and analysis
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Mobile Multibody Dynamics (MOMDYN) is the first multibody dynamics app for iOS. MOMDYN provides an easy to use graphical interface that is familiar to mechanical engineers and physicists who have studied classical mechanics, with a powerful set of features similar to modern modeling and simulation software. The software forms a bridge between the"first-principles" approach to dynamics problem solving where one defines kinematic and dynamic equations by hand before developing custom code for each individual system, and the modern approach where the fundamental mathematical equations are hidden behind a purely graphical, computer aided design (CAD)-like interface. MOMDYN is an excellent educational resource for students enrolled in dynamics, vibration, or structural analysis coursework as part of a mechanical or aerospace engineering program. The modeling process and equations are all visible to the user, and you can even export custom Python code so you can simulate your system on a desktop. The app provides an entry point to learning multibody dynamics simulation, which will ease the learning curve for using modern scientific computing software. # Engineering and Physics Simulation in the Palm of Your Hand The creative instinct is one that we humans have little control over. While we would hope that our best ideas strike while we are best-equipped to take action, the reality is that they will frequently hit while we are laying in bed, riding on a train, or out for a walk. On some cases, they may even come while we are sitting in a boring meeting away from the comfort zone of our workstation. For most of us, our mobile devices are never more than a few feet away. MOMDYN lets you take action and build on your ideas in the moment, and watch them take motion in the palm of your hand. # An Entry Point For Dynamics Students and Professionals Multibody dynamics simulation is increasingly becoming an essential discipline for the development of complex mechanical systems. Recent years have seen the rise of many excellent software solutions, many belonging to larger multidisciplinary computer aided engineering packages. These products are great, expansive solutions that can be a pleasure to learn, use, and occasionally abuse. For many professionals, these provide for a lucrative career or business model. For others, the cost is a significant barrier to entry. MOMDYN presents an accessible alternative for engineering students or developing professionals who want to learn the basic principles behind how the advanced software works so they can feel confident in applying those tools in their future careers. # Build On Your Mobile Device, Analyze On A Desktop Your mobile device does a lot of amazing things, but no one would call it a high performance computer. Want to run your model once? No problem, MOMDYN has you covered. Want to run 100,000 cases in a Monte Carlo study? You’re going to want a professional workstation or computing cluster for that. This is advanced stuff, but MOMDYN can help: With the Export menu, you can choose to automatically generate Python source code that will replicate the same equations and parameters that you set up on your device, and can be executed in a Python environment using common and freely available packages. Want phase plots, frequency spectra, or to integrate your mechanism model with another physical or control system? If you can code it, you can do it.
Screenshots
Verdict
The clearest difference is rating: Sketchalyze at 5.0 against Mobile Multibody Dynamics's 3.7. Sketchalyze also leads on review sentiment (60% vs 50%). Mobile Multibody Dynamics's advantage is update cadence (monthly vs every 13 months). 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 6 respectively. Written reviews point the same way: 60% of Sketchalyze's written reviews are positive against 50% of Mobile Multibody Dynamics's.
Sketchalyze ships an update every 13 months, Mobile Multibody Dynamics monthly. The most recent releases landed on September 13, 2026 and September 16, 2026 respectively.
| Parameter | Sketchalyze | Mobile Multibody Dynamics |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | 3.7 (6 ratings) |
| Positive reviews | 60.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 7 — better | 6 |
| Update frequency | Every 13 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 15 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | Duy Truong | Eliott Radcliffe |
Customer experience
Sketchalyze
Mobile Multibody Dynamics
In-app purchases
Sketchalyze
No in-app purchases
Mobile Multibody Dynamics
No in-app purchases
Questions
Is Sketchalyze free?
Is Mobile Multibody Dynamics free?
Which has better reviews, Sketchalyze or Mobile Multibody Dynamics?
Do Sketchalyze or Mobile Multibody Dynamics have ads?
Which is updated more often, Sketchalyze or Mobile Multibody Dynamics?
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