# Double Pendulum vs Pendulum Lab

The clearest difference is price: Double Pendulum at Free against Pendulum Lab's $0.99. Double Pendulum also leads on in-app purchases (none vs 1) and iOS requirement (11.2 vs 15.0). On ads and device support there is nothing between them.

Double Pendulum is free to download; Pendulum Lab costs $0.99 up front. Pendulum Lab sells 1 one-off in-app purchase. Double Pendulum asks for nothing beyond the download.

## The numbers

| Metric | Double Pendulum | Pendulum Lab |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/double-pendulum/id1377507794/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | Free | — |
| Size | 8 MB | 4 MB |
| Requires iOS | **11.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Frolov](https://appshunter.io/developer/1377507793) | [hyeonsu jeong](https://appshunter.io/developer/1628268684) |

## What reviewers say

### Double Pendulum

[App page](https://appshunter.io/ios/app/double-pendulum/id1377507794)

Explore the fascinating world of mechanical chaos with this app. It accurately simulates the physics of a frictionless double pendulum, allowing you to witness complex and unpredictable motion. Discover the beauty of chaotic systems through interactive exploration.

**Highlights:** Frictionless double pendulum simulation, Accurate physics engine, Exploration of chaotic motion, Interactive visualization, Educational tool for physics

**Features:** macOS Compatibility

**In-app purchases:** none


### Pendulum Lab

[App page](https://appshunter.io/ios/app/pendulum-lab/id6661026555)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is Double Pendulum free?

Double Pendulum is free to download, with no in-app purchases.

### Is Pendulum Lab free?

Pendulum Lab costs $0.99, and also offers in-app purchases.

### Do Double Pendulum or Pendulum Lab have ads?

Neither Double Pendulum nor Pendulum Lab shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*