# Double Pendulum vs Quantum

The clearest difference is in-app purchases: Double Pendulum at none against Quantum's 6. Double Pendulum also leads on review sentiment (100% vs 86%) and iOS requirement (11.2 vs 26.0). Quantum's advantage is ratings volume (133 vs 2) and rating (4.8 vs 4.5). On price, ads and device support there is nothing between them.

Both are free to download. Quantum sells 3 one-off in-app purchases. Double Pendulum asks for nothing beyond the download.

Quantum holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Quantum has 133 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 100% of Double Pendulum's written reviews are positive against 86% of Quantum's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Double Pendulum | Quantum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/double-pendulum/id1377507794/reviews) | **[4.8 (133 ratings)](https://appshunter.io/ios/app/quantum-particle-life/id6504465371/reviews)** |
| Number of ratings | 2 | **133** |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 32 MB |
| Requires iOS | **11.2** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Frolov](https://appshunter.io/developer/1377507793) | [GEORGY OSTROBROD](https://appshunter.io/developer/1875865758) |

## 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


### Quantum

[App page](https://appshunter.io/ios/app/quantum-particle-life/id6504465371)

Explore the hidden world of particles with a real-time simulator. Model up to 10,000 particles and experiment with natural phenomena like crystallization and orbital mechanics. Customize interactions and visualize results dynamically.

**Highlights:** Real-time particle simulation, Model up to 10,000 particles, Simulate natural phenomena, Four distinct particle classes, Customizable rules editor, Dynamic visualizations, Interactive control

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer tip | $1.99 | one-time |
| Developer tip | $3.99 | one-time |
| Developer tip | $5.99 | one-time |


## Frequently asked questions

### Is Double Pendulum free?

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

### Is Quantum free?

Quantum is free to download, with in-app purchases available.

### Which has better reviews, Double Pendulum or Quantum?

Quantum is rated higher. Double Pendulum averages 4.5 out of 5 from 2 ratings, while Quantum averages 4.8 from 133 ratings.

### Do Double Pendulum or Quantum have ads?

Neither Double Pendulum nor Quantum 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.*