# SPEEDSim vs Pic2Mag

The clearest difference is rating: Pic2Mag at 5.0 against SPEEDSim's 2.7. SPEEDSim's advantage is update cadence (every 4 months vs every 31 months) and ratings volume (18 vs 1). On price, ads, in-app purchases and monetization model 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 2.7. That said, the two scores are not equally well evidenced: SPEEDSim has 18 ratings behind it against 1, so its average is the more settled of the two.

SPEEDSim ships an update every 4 months, Pic2Mag every 31 months. The most recent releases landed on September 9, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | SPEEDSim | Pic2Mag |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (18 ratings)](https://appshunter.io/ios/app/speedsim-spatial-population-dynamics-simulator/id437545518/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pic2mag/id1514504657/reviews)** |
| Number of ratings | **18** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 31 months |
| Monetization | Free | Free |
| Size | 14 MB | 108 MB |
| Requires iOS | 8.0 | 8.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Hiebeler](https://appshunter.io/developer/437545521) | [Michael Snyder](https://appshunter.io/developer/1514504656) |

## What reviewers say

### SPEEDSim

[App page](https://appshunter.io/ios/app/speedsim-spatial-population-dynamics-simulator/id437545518)

Explore complex ecological and epidemiological models through interactive simulations. This tool introduces cellular automaton models and allows hands-on manipulation of parameters to visualize spatial dynamics. It's designed for educational outreach and scientific exploration.

**Highlights:** Interactive spatial simulations, Cellular automaton models, Parameter customization, Visualize spatial dynamics, Graph summaries over time, Save images to Photos, Pinch-to-zoom and pan

**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 SPEEDSim free?

SPEEDSim 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, SPEEDSim or Pic2Mag?

Pic2Mag is rated higher. SPEEDSim averages 2.7 out of 5 from 18 ratings, while Pic2Mag averages 5.0 from 1 ratings.

### Do SPEEDSim or Pic2Mag have ads?

Neither SPEEDSim nor Pic2Mag shows ads.

### Which is updated more often, SPEEDSim or Pic2Mag?

SPEEDSim ships an update every 4 months, and Pic2Mag every 31 months. Most recently, SPEEDSim was updated on September 9, 2026 and Pic2Mag on July 5, 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.*