# Chaos Lab vs SPEEDSim

The clearest difference is rating: Chaos Lab at 4.9 against SPEEDSim's 2.7. Chaos Lab also leads on update cadence (every 3 days vs every 4 months) and review sentiment (69% vs 50%). SPEEDSim's advantage is iOS requirement (8.0 vs 18.0). 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.

Chaos Lab holds the better App Store score, 4.9 against 2.7. Both are backed by a comparable volume of ratings — 7 and 18 respectively. Written reviews point the same way: 69% of Chaos Lab's written reviews are positive against 50% of SPEEDSim's.

Chaos Lab ships an update every 3 days, SPEEDSim every 4 months. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Chaos Lab | SPEEDSim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/chaos-lab/id398270047/reviews)** | [2.7 (18 ratings)](https://appshunter.io/ios/app/speedsim-spatial-population-dynamics-simulator/id437545518/reviews) |
| Number of ratings | 7 | **18** |
| Positive reviews | **68.8% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 months |
| Monetization | Free | Free |
| Size | 7 MB | 14 MB |
| Requires iOS | 18.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Timothy D. Jones](https://appshunter.io/developer/398270050) | [David Hiebeler](https://appshunter.io/developer/437545521) |

## What reviewers say

### Chaos Lab

[App page](https://appshunter.io/ios/app/chaos-lab/id398270047)

Explore the beauty of chaos through interactive simulations of mathematical objects, chemical reactions, and celestial mechanics. Manipulate parameters with device tilt and touch to create stunning visual art and understand complex scientific principles.

**Highlights:** Interactive strange attractors, Chemical oscillator simulations, 3-body chaos simulation, Julian fractal morphing, Real-time parameter control, Multiple attractors included

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Chaos Lab free?

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

### Is SPEEDSim free?

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

### Which has better reviews, Chaos Lab or SPEEDSim?

Chaos Lab is rated higher. Chaos Lab averages 4.9 out of 5 from 7 ratings, while SPEEDSim averages 2.7 from 18 ratings.

### Do Chaos Lab or SPEEDSim have ads?

Neither Chaos Lab nor SPEEDSim shows ads.

### Which is updated more often, Chaos Lab or SPEEDSim?

Chaos Lab ships an update every 3 days, and SPEEDSim every 4 months. Most recently, Chaos Lab was updated on June 1, 2026 and SPEEDSim on September 9, 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.*