Comparison

Mobile Multibody Dynamics vs REO Mechanical Engineering

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

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

REO Mechanical Engineering

Features
Read full description

This app is a Learning Management System intended to help users tackle all the Philippine Mechanical Engineering Licensure Examination subjects. The app's primary objective is to enhance the knowledge and technical proficiency of the user needed to pass the licensure examination. It is designed to equip the user with the required competencies for a lifelong career in Engineering. Moreover, it also caters to students enrolled in mechanical engineering courses. It is a comprehensive reviewer mobile app covering all the topics and details in the Mechanical Engineering syllabus and TOS. It includes lecture notes intended to orient the user on the basic concepts of each topic. The app offers video lectures to augment the lecture notes to discuss the subject's more complex and complicated topics. Sample problems are presented during the lessons to teach the user the concepts and theories. The user can access the app and learn their pacing in a stress-free environment. The app provides interactive online exercises to develop the user's speed, accuracy, and endurance needed to pass the exams to test the user's progress. Exercises are constantly updated with fresh materials on a timely basis. The user can access the app and learn at their desired pacing. This app is part of the Real Excellence Online Review group of applications. Content is developed by a team of Mechanical Engineering board exam top-notchers and tenured and decorated Engineer Educators.

Screenshots

Mobile Multibody Dynamics4 screens
REO Mechanical Engineering4 screens

Verdict

The call

The clearest difference is update cadence: Mobile Multibody Dynamics at monthly against REO Mechanical Engineering's every 21 months. REO Mechanical Engineering's advantage is iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and device support 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mobile Multibody Dynamics ships an update monthly, REO Mechanical Engineering every 21 months. The most recent releases landed on October 6, 2026 and September 17, 2026 respectively.

Scorecard2 real differences · 8 level
Mobile Multibody Dynamics versus REO Mechanical Engineering: the parameters behind the verdict, then further details
ParameterMobile Multibody DynamicsREO Mechanical Engineering
PriceFreeFree
Rating3.7 (6 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings6 — better—
Update frequencyMonthly — betterEvery 21 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.014.0 — better
Further details — not scored
Size111 MB452 MB
Age rating4+17+
DeveloperEliott RadcliffeRex Banggawan

In-app purchases

None

Mobile Multibody Dynamics

No in-app purchases

None

REO Mechanical Engineering

No in-app purchases

Questions

Is Mobile Multibody Dynamics free?
Mobile Multibody Dynamics is free to download, with no in-app purchases.
Is REO Mechanical Engineering free?
REO Mechanical Engineering is free to download, with no in-app purchases.
Do Mobile Multibody Dynamics or REO Mechanical Engineering have ads?
Neither Mobile Multibody Dynamics nor REO Mechanical Engineering shows ads.
Which is updated more often, Mobile Multibody Dynamics or REO Mechanical Engineering?
Mobile Multibody Dynamics ships an update monthly, and REO Mechanical Engineering every 21 months. Most recently, Mobile Multibody Dynamics was updated on October 6, 2026 and REO Mechanical Engineering on September 17, 2026.

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