# Double Pendulum Simulation vs FP

The clearest difference is in-app purchases: Double Pendulum Simulation at none against FP's 3. Double Pendulum Simulation also leads on iOS requirement (7.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. FP sells 3 in-app purchases, starting at $4.99 per 7 days. Double Pendulum Simulation asks for nothing beyond the download.

## The numbers

| Metric | Double Pendulum Simulation | FP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/double-pendulum-simulation/id370962405/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 73 months | — |
| Monetization | Free | — |
| Size | 0 MB | 26 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ManneTroll Solutions](https://appshunter.io/developer/313743954) | [FLY SKY PTY LTD](https://appshunter.io/developer/1838696534) |

## 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


### FP

[App page](https://appshunter.io/ios/app/fp-c-flight-paramedic-prep/id6782511385)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flight Paramedic Certification | $4.99 | per 7 days |
| Flight Paramedic Certification | $12.99 | per month |
| Flight Paramedic Certification | $39.99 | one-time |


## Frequently asked questions

### Is Double Pendulum Simulation free?

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

### Is FP free?

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

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

Neither Double Pendulum Simulation nor FP 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.*