Mechanical Pendulums vs Learn Quaternions
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mechanical Pendulums
Explore the complex and often chaotic motion of coupled pendulums. Interact with double, triple, quadruple, and even octuple pendulums, visualizing their behavior in 2D or 3D.
- N-tuple pendulum simulations
- Interactive motion control
- Multiple pendulum configurations
- Quartz and OpenGL visualization
- Derived equations of motion
- 4th order Runge-Kutta solver
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In mechanics, in the area of dynamical system, a N-tuple pendulum is a set of N simple pendulums attached to each other. These N-tuple pendulums are physical systems that exibits rich dynamical behavior. For certain energies, are the motion of these mechanical pendulums often chaotic. You can influence the motion of the pendulums by holding your device in different positions. The equations of motions of these pendulums has been derived using the Sophia mechanical package. The different set of differential equations are solved using the 4:th order Runge-Kutta method for the time stepping. Within this application you can switch between these mechanical pendulums: - Double - Triple - Quadruple - Quintuple - Sextuple - Octuple - Symmtric Double - Simple 3-Dimensional The visualization of the pendulums can be viewed in either a Quartz view or in an OpenGL view.
Learn Quaternions
Explore the abstract mathematical concept of quaternions through an interactive, visual experience. Manipulate rotation angles and axes with sliders and touch gestures to understand their behavior in a fun and engaging way.
- Visual quaternion exploration
- Interactive sliders for rotation
- 3D scene manipulation via touch
- Fun and engaging learning method
- Built with RealityKit
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Learning quaternions doesn't have to be hard! This app is a visual way to learn how quaternions work that makes it fun and interactive. Move the sliders to see the angle and axis of rotation change. Drag across screen to move around the scene. Made with RealityKit.
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Verdict
The clearest difference is rating: Mechanical Pendulums at 5.0 against Learn Quaternions's 2.0. Learn Quaternions's advantage is device support and iOS requirement (13.5 vs 15.0). On price, ratings volume, in-app purchases and monetization model 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.
Mechanical Pendulums holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Mechanical Pendulums | Learn Quaternions |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Ads | — | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | — | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 13.5 — better |
| Further details — not scored | ||
| Size | 0 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | ManneTroll Solutions | Grant Jarvis |
In-app purchases
Mechanical Pendulums
No in-app purchases
Learn Quaternions
No in-app purchases
Questions
Is Mechanical Pendulums free?
Is Learn Quaternions free?
Which has better reviews, Mechanical Pendulums or Learn Quaternions?
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