# Pendulum Lab — Interactive Physics

> Interactive Physics (iPhone/iPad app by hyeonsu jeong.)

- Source: https://appshunter.io/ios/app/pendulum-lab/id6661026555 (this page in markdown: same URL + `.md`)
- Developer: [hyeonsu jeong](https://appshunter.io/developer/1628268684)
- Category: Education, Games, Simulation
- Price: $0.99 with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 4 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2024-08-26
- Data updated: 2026-06-01
- User reviews in markdown: https://appshunter.io/ios/app/pendulum-lab/id6661026555/reviews.md

## What is Pendulum Lab?

PendulumLab: Interactive Pendulum Physics Simulator
Dive into the fascinating world of pendulum physics with PendulumLab! Whether you're a student, educator, or science enthusiast, this app brings the beauty and complexity of pendulum motion right to your fingertips.

Key Features:
Explore single, double, and triple pendulum systems
Interact with real-time, visually stunning simulations
Adjust parameters like length, angle, and gravity to see instant effects
Visualize pendulum trajectories with customizable trails
Toggle trajectory visibility for each pendulum bob
Clear trajectories with a single tap for new experiments

Perfect for:

Students learning about harmonic motion and chaos theory
Teachers demonstrating complex physics concepts
Science enthusiasts curious about pendulum behavior
Anyone fascinated by the interplay of physics and visual art

Why PendulumLab?

Intuitive controls make learning physics fun and accessible
High-quality graphics provide a clear view of pendulum dynamics
Real-time parameter adjustments allow for instant experimentation
Trajectory visualization helps understand the complexity of multi-pendulum systems

Unlock the secrets of pendulum motion, from simple harmonic oscillations to chaotic behavior. PendulumLab turns your device into a powerful physics laboratory, letting you explore, learn, and marvel at the wonders of motion.
Download PendulumLab now and start your journey into the mesmerizing world of pendulum physics!

## Pricing and in-app purchases

Base price: $0.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Triple Pendulum Unlock | $0.99 | one-time |



## Version history (last 5 releases)

### 2.0.4 — 2026-02-17

This update improves simulation controls and stability.
- Added Reset, Play/Pause, Step, and Speed controls (0.25x to 2.0x)
- Added built-in presets and user presets (save/load)
- Added Shuffle to instantly apply safe randomized initial conditions
- Improved lifecycle and numerical stability (background resume, NaN/Inf recovery, denominator clamping)

### 2.0.3 — 2026-02-17

This update improves simulation controls and stability.
- Added Reset, Play/Pause, Step, and Speed controls (0.25x to 2.0x)
- Added built-in presets and user presets (save/load)
- Added Shuffle to instantly apply safe randomized initial conditions
- Improved lifecycle and numerical stability (background resume, NaN/Inf recovery, denominator clamping)

### 2.0.1 — 2024-11-03

App preview has been added.

### 2.0.0 — 2024-09-08

User experience has been improved.

### 1.0.0 — 2024-08-26

No release notes.

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## More apps by hyeonsu jeong

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- [Yammy Cook](https://appshunter.io/ios/app/yammy-cook/id6627338744)

All apps by hyeonsu jeong: https://appshunter.io/developer/1628268684

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*