# Physarum vs Particle Lab

The clearest difference is review sentiment: Physarum at 100% against Particle Lab's 0%. Physarum also leads on rating (4.8 vs 3.0) and ratings volume (34 vs 1). Particle Lab's advantage is in-app purchases (none vs 6) and update cadence (every 4 days vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Physarum sells 3 one-off in-app purchases. Particle Lab asks for nothing beyond the download.

Physarum holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Physarum has 34 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Physarum's written reviews are positive against 0% of Particle Lab's.

Physarum ships an update every 5 weeks, Particle Lab every 4 days. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Physarum | Particle Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (34 ratings)](https://appshunter.io/ios/app/physarum-slime-mold/id6744574947/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/particle-lab/id6756907817/reviews) |
| Number of ratings | **34** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 32 MB | 19 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GEORGY OSTROBROD](https://appshunter.io/developer/1875865758) | [youngchil cho](https://appshunter.io/developer/868612955) |

## What reviewers say

### Physarum

[App page](https://appshunter.io/ios/app/physarum-slime-mold/id6744574947)

Explore the fascinating emergent behavior of slime molds through a visually rich simulation. Adjust agent parameters, influence growth with intuitive controls, and discover complex, mesmerizing patterns.

**Highlights:** Slime mold behavior simulation, Autonomous agent control, Adjustable agent parameters, Maze solving and network formation, Vibrant color modes, Interactive system manipulation

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small developer tip | $1.99 | one-time |
| Medium developer tip | $3.99 | one-time |
| Big developer tip | $5.99 | one-time |


### Particle Lab

[App page](https://appshunter.io/ios/app/particle-lab/id6756907817)

Experience a physics simulation sandbox where tens of thousands of particles interact in real-time. Control environmental conditions like gravity and wind with intuitive sliders to observe dramatic changes in particle behavior. Customize visual effects and create your own miniature universe.

**Highlights:** Real-time particle interaction, Customizable environmental conditions (gravity, wind), Interactive touch and drag controls, Visual customization (color, size, glow), High-performance physics engine, Relaxing and meditative experience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Physarum free?

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

### Is Particle Lab free?

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

### Which has better reviews, Physarum or Particle Lab?

Physarum is rated higher. Physarum averages 4.8 out of 5 from 34 ratings, while Particle Lab averages 3.0 from 1 ratings.

### Do Physarum or Particle Lab have ads?

Neither Physarum nor Particle Lab shows ads.

### Which is updated more often, Physarum or Particle Lab?

Physarum ships an update every 5 weeks, and Particle Lab every 4 days. Most recently, Physarum was updated on November 5, 2026 and Particle Lab on October 30, 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.*