Two Links Double Pendulum
Eliott Radcliffe Entertainment iPhoneiPadiPod touch
Two Links Double Pendulum is a free Entertainment app for iPhone and iPad by Eliott Radcliffe. Requires iOS 18.2. Updated May 21, 2026.
- Price
- Free
- on the App Store
- Size
- 281 MB
- Age 4+
- Updated
- May 21
- 2026 · v2.0
Screenshots
About Two Links Double Pendulum
Two Links brings one of physics' most beautiful chaotic systems to life. Watch a double pendulum swing, twist, and spiral in real-time 3D — then place it on your floor in Augmented Reality and walk around it. Features • Real-time double pendulum physics (RK4 integration) • AR mode — anchor the pendulum on any flat surface • Orbit the 3D scene freely or let it run hands-free • Adjust link length, pivot position, density, and color • Particle trail from the second link tip • Night sky environment with the Moon and Earth • Pause, shuffle, and watch the chaos reset
What’s new
Version 2.0 · Updated May 21, 2026
A complete rewrite in Kotlin Multiplatform, adds Augmented Reality, and delivers a fully redesigned interface. What’s New Augmented Reality — place the double pendulum in your real environment using RealityKit. Drag to reposition, pinch to scale, and rotate with two fingers. 3D planet models — a high-resolution Earth and Moon appear in the scene, loading with a smooth fade-in transition. Night sky environment — an HDR skybox sets the scene against a starlit background in standard view. Shuffle — randomize link lengths, offsets, and colors with a single tap. Refined controls — a redesigned top bar with menus for view mode, link colors, and dimensions. Particle emitters — track the location of the tip of the second pendulum link
App privacy
The developer, Eliott Radcliffe, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Two Links Double Pendulum
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Two Links Double Pendulum | – | Free | May 21, 2026 | |
| DeskBalls | – | Free | Mar 23, 2026 | Compare |
| Yaktraks - 90s Nostalgia | 4.7 / 5 (18) | Free | Sep 4, 2025 | Compare |
| Light Creations | 4.1 / 5 (14) | 2.99 USD | Oct 9, 2026 | Compare |
| Planet Gravity | – | Free | Dec 21, 2025 | Compare |
| Jokify: AI Joke Journal | 5.0 / 5 (3) | Free | Apr 9, 2024 | Compare |
| No One Crash - Classic Zigzag | – | 2.29 USD | Oct 19, 2026 | Compare |