Comparison

Mobile Multibody Dynamics vs Black hole finder

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
Features
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

Black hole finder

Contribute to cutting-edge astronomical research by identifying potential black holes and rare elements. Sift through real-time telescope images to detect fleeting light signals from cosmic events and potentially earn co-authorship on scientific publications.

Highlights
  • Analyze real-time telescope images
  • Detect light signals from cosmic events
  • Contribute to scientific research
  • Potential co-authorship on publications
  • Learn about black holes and neutron star mergers
  • Direct telescopes for additional measurements
Features
Read full description

Welcome to the Black Hole Finder, an exciting citizen science project dedicated to discovering black holes, particularly those formed from the fusion of two neutron stars. You have the unique opportunity to contribute to this cutting-edge research from the comfort of your home, using your phone, tablet, or computer. Our app brings the cosmos to your fingertips. When two neutron stars merge, they create a powerful event, sending gravitational waves through space. These events are detected by our gravitational wave detectors, which alert us to potential black hole formations. Mergers of this kind not only create black holes but also give birth to rare Earth elements such as Iodine, Gold, and Cerium. All these elements, especially Iodine, play crucial roles in supporting life as we know it. In addition to gravitational waves, these cosmic collisions emit light signals. The chase is on to detect these signals with our trio of specially designed BlackGEM telescopes located in Chile. The catch is that the detectors only provide a general localization of the event and the light signals are fleeting. Therefore, we need to act quickly to capture these signals before they fade away after a few days or a week at most. That's where you come in! Using our app, you will sift through real-time images of the sky taken by our BlackGEM telescopes. You will help us spot these light signals, effectively identifying potential new black holes. Not only will you be possibly among the first to set eyes on the light from these celestial events, but with some training, you may also direct telescopes to take additional measurements of intriguing objects. Your contributions to science won't go unnoticed. Participants who make significant discoveries will be offered co-authorship on scientific publications that result from their findings. We also provide training and guidance to enrich your understanding of the cosmos. The Black Hole Finder project is not just about making significant scientific contributions. It's about engaging with the wonders of the universe, learning about the intricate processes that drive its dynamics, and having fun while doing it! So, join us on this thrilling journey of discovery and exploration. Download the Black Hole Finder app now and start your cosmic adventure!

Screenshots

Mobile Multibody Dynamics4 screens
Black hole finder2 screens

Verdict

The call

The clearest difference is rating: Black hole finder at 4.1 against Mobile Multibody Dynamics's 3.7. Black hole finder also leads on update cadence (every 10 days vs monthly). Mobile Multibody Dynamics's advantage is review sentiment (80% vs 63%). 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Black hole finder holds the better App Store score, 4.1 against 3.7. Both are backed by a comparable volume of ratings — 6 and 7 respectively. Written reviews complicate that: 80% of Mobile Multibody Dynamics's written reviews are positive against 63% of Black hole finder's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Mobile Multibody Dynamics ships an update monthly, Black hole finder every 10 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 7 level
Mobile Multibody Dynamics versus Black hole finder: the parameters behind the verdict, then further details
ParameterMobile Multibody DynamicsBlack hole finder
PriceFreeFree
Rating3.7 (6 ratings)4.1 (7 ratings) — better
Positive reviews80.0% of reviews — better62.5% of reviews
Number of ratings67 — better
Update frequencyMonthlyEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size111 MB44 MB
Age rating4+4+
DeveloperEliott RadcliffeDDQ

Customer experience

Mobile Multibody Dynamics

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Black hole finder

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews8 reviews
Positive62.5%
Neutral0.0%
Negative37.5%

In-app purchases

None

Mobile Multibody Dynamics

No in-app purchases

None

Black hole finder

No in-app purchases

Questions

Is Mobile Multibody Dynamics free?
Mobile Multibody Dynamics is free to download, with no in-app purchases.
Is Black hole finder free?
Black hole finder is free to download, with no in-app purchases.
Which has better reviews, Mobile Multibody Dynamics or Black hole finder?
Black hole finder is rated higher. Mobile Multibody Dynamics averages 3.7 out of 5 from 6 ratings, while Black hole finder averages 4.1 from 7 ratings.
Do Mobile Multibody Dynamics or Black hole finder have ads?
Neither Mobile Multibody Dynamics nor Black hole finder shows ads.
Which is updated more often, Mobile Multibody Dynamics or Black hole finder?
Mobile Multibody Dynamics ships an update monthly, and Black hole finder every 10 days. Most recently, Mobile Multibody Dynamics was updated on November 3, 2026 and Black hole finder on November 7, 2026.

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