# Double Pendulum Simulation vs Epicycles

The clearest difference is rating: Epicycles at 5.0 against Double Pendulum Simulation's 4.0. Epicycles also leads on update cadence (every 5 days vs every 73 months). Double Pendulum Simulation's advantage is iOS requirement (7.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Epicycles holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Double Pendulum Simulation ships an update every 73 months, Epicycles every 5 days. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Double Pendulum Simulation | Epicycles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/double-pendulum-simulation/id370962405/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/epicycles/id6450433959/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 73 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 0 MB | 4 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ManneTroll Solutions](https://appshunter.io/developer/313743954) | [Limit Point Software](https://appshunter.io/developer/377981570) |

## What reviewers say

### Double Pendulum Simulation

[App page](https://appshunter.io/ios/app/double-pendulum-simulation/id370962405)

Explore the chaotic and dynamic behavior of a double pendulum. This app uses the Runge-Kutta method to solve differential equations, allowing you to influence the pendulum's motion by tilting your device.

**Highlights:** Double pendulum simulation, Runge-Kutta method solver, Chaotic dynamics exploration, Device tilt interaction, Educational physics tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Epicycles

[App page](https://appshunter.io/ios/app/epicycles/id6450433959)

Explore the visualization of complex Fourier series through interactive epicycles. Create and analyze approximations of parametric curves and complex functions. Save animations and export custom terms for later use.

**Highlights:** Visualize Fourier series of 2D functions, Create epicycles from drawn curves, Save custom terms to documents, Export animations as GIFs, Adjust time and number of terms, Interactive graphic elements

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Double Pendulum Simulation free?

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

### Is Epicycles free?

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

### Which has better reviews, Double Pendulum Simulation or Epicycles?

Epicycles is rated higher. Double Pendulum Simulation averages 4.0 out of 5 from 2 ratings, while Epicycles averages 5.0 from 2 ratings.

### Do Double Pendulum Simulation or Epicycles have ads?

Neither Double Pendulum Simulation nor Epicycles shows ads.

### Which is updated more often, Double Pendulum Simulation or Epicycles?

Double Pendulum Simulation ships an update every 73 months, and Epicycles every 5 days. Most recently, Double Pendulum Simulation was updated on September 24, 2026 and Epicycles on September 21, 2026.

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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.*