Comparison

Mobile Multibody Dynamics vs Mechanical Formula

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

Mechanical Formula

This app provides over 200 essential mechanical engineering formulas and calculations in a user-friendly tool. It's designed to simplify complex concepts and speed up problem-solving for students, professionals, and educators.

Highlights
  • 200+ mechanical engineering formulas
  • Instant calculations
  • Intuitive interface
  • Real-world application explanations
  • Exam preparation aid
  • Lifetime Premium option
Features
Read full description

The Mechanical Engineering Formula & Calculator app brings together 200+ essential mechanical engineering formulas and calculations in one powerful and easy-to-use tool. Designed specifically for mechanical students, professionals, and educators, this app simplifies complex concepts and makes problem-solving faster and more accurate. Developed by engineers for engineers, this app covers a wide range of mechanical engineering topics, helping users understand the principles behind each formula and how they are applied in real-world scenarios. Whether you are studying, revising, or working on-site, this app serves as your reliable engineering companion. With an intuitive interface, you can easily select any calculator, enter the required values, and get instant results with clear output. No complicated steps — just accurate calculations at your fingertips. Perfect for: - Mechanical engineering students - Practicing engineers - Technical instructors - Exam preparation & quick reference Boost your productivity and master mechanical calculations with confidence. In app purchase included : Lifetime Premium Privacy policy : https://chatlyst.in/privacy.html Terms and condition : https://chatlyst.in/tcondition.html

Screenshots

Mobile Multibody Dynamics4 screens
Mechanical Formula4 screens

Verdict

The call

The clearest difference is rating: Mechanical Formula at 4.7 against Mobile Multibody Dynamics's 3.7. Mechanical Formula also leads on ratings volume (34 vs 6) and iOS requirement (13.0 vs 16.0). Mobile Multibody Dynamics's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 4 months). On price, ads 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. Mechanical Formula sells 1 one-off in-app purchase. Mobile Multibody Dynamics asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mechanical Formula holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Mechanical Formula has 34 ratings behind it against 6, so its average is the more settled of the two.

UpkeepUpdate frequency

Mobile Multibody Dynamics ships an update monthly, Mechanical Formula every 4 months. The most recent releases landed on September 16, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 4 level
Mobile Multibody Dynamics versus Mechanical Formula: the parameters behind the verdict, then further details
ParameterMobile Multibody DynamicsMechanical Formula
PriceFreeFree
Rating3.7 (6 ratings)4.7 (34 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings634 — better
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size111 MB42 MB
Age rating4+4+
DeveloperEliott RadcliffeKantaben Gorasiya

Customer experience

Mobile Multibody Dynamics

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Mechanical Formula

All ratings34 ratings
Positive91.2%
Neutral2.9%
Negative5.9%

In-app purchases

None

Mobile Multibody Dynamics

No in-app purchases

1 purchases

Mechanical Formula

One-time1
  • Lifetime$9.99

Questions

Is Mobile Multibody Dynamics free?
Mobile Multibody Dynamics is free to download, with no in-app purchases.
Is Mechanical Formula free?
Mechanical Formula is free to download, with in-app purchases available.
Which has better reviews, Mobile Multibody Dynamics or Mechanical Formula?
Mechanical Formula is rated higher. Mobile Multibody Dynamics averages 3.7 out of 5 from 6 ratings, while Mechanical Formula averages 4.7 from 34 ratings.
Do Mobile Multibody Dynamics or Mechanical Formula have ads?
Neither Mobile Multibody Dynamics nor Mechanical Formula shows ads.
Which is updated more often, Mobile Multibody Dynamics or Mechanical Formula?
Mobile Multibody Dynamics ships an update monthly, and Mechanical Formula every 4 months. Most recently, Mobile Multibody Dynamics was updated on September 16, 2026 and Mechanical Formula on September 19, 2026.

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