# Double Pendulum Simulation vs Pic2Mag

The clearest difference is rating: Pic2Mag at 5.0 against Double Pendulum Simulation's 4.0. Pic2Mag also leads on update cadence (every 31 months vs every 73 months). 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.

Pic2Mag holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Double Pendulum Simulation ships an update every 73 months, Pic2Mag every 31 months. The most recent releases landed on September 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Double Pendulum Simulation | Pic2Mag |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/double-pendulum-simulation/id370962405/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pic2mag/id1514504657/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 73 months | **Every 31 months** |
| Monetization | Free | Free |
| Size | 0 MB | 108 MB |
| Requires iOS | **7.0** | 8.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ManneTroll Solutions](https://appshunter.io/developer/313743954) | [Michael Snyder](https://appshunter.io/developer/1514504656) |

## 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


### Pic2Mag

[App page](https://appshunter.io/ios/app/pic2mag/id1514504657)

Visualize magnetic and electric fields by drawing magnets or charges. This educational tool helps students understand physics concepts by displaying field lines and voltage potentials. It offers a free, ad-free learning experience for iOS devices.

**Highlights:** Draw magnets to visualize magnetic fields, Draw charges to visualize electric fields, Magnetostatic and Electrostatic modes, Field line and voltage potential plotting, Caches results for faster processing, Ad-free learning experience

**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 Pic2Mag free?

Pic2Mag is free to download, with no in-app purchases.

### Which has better reviews, Double Pendulum Simulation or Pic2Mag?

Pic2Mag is rated higher. Double Pendulum Simulation averages 4.0 out of 5 from 2 ratings, while Pic2Mag averages 5.0 from 1 ratings.

### Do Double Pendulum Simulation or Pic2Mag have ads?

Neither Double Pendulum Simulation nor Pic2Mag shows ads.

### Which is updated more often, Double Pendulum Simulation or Pic2Mag?

Double Pendulum Simulation ships an update every 73 months, and Pic2Mag every 31 months. Most recently, Double Pendulum Simulation was updated on September 24, 2026 and Pic2Mag on October 8, 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.*