# Vector Field vs Physarum

The clearest difference is in-app purchases: Vector Field at none against Physarum's 6. Vector Field also leads on device support (4 vs 2) and iOS requirement (15.0 vs 26.0). Physarum's advantage is review sentiment (100% vs 73%) and rating (4.8 vs 4.5). On price and ads there is nothing between them.

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

Physarum holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Physarum has 34 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 73% of Vector Field's written reviews are positive against 100% of Physarum's.

Vector Field ships an update every 3 months, Physarum every 5 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Vector Field | Physarum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/vector-field-particle-flow/id1598282424/reviews) | **[4.8 (34 ratings)](https://appshunter.io/ios/app/physarum-slime-mold/id6744574947/reviews)** |
| Number of ratings | 6 | **34** |
| Positive reviews | 72.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 32 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Eliott Morgensztern](https://appshunter.io/developer/1478504124) | [GEORGY OSTROBROD](https://appshunter.io/developer/1875865758) |

## What reviewers say

### Vector Field

[App page](https://appshunter.io/ios/app/vector-field-particle-flow/id1598282424)

Visualize mathematical vector fields with animated particles in 2D, 3D, or spherical spaces. Input custom equations and adjust simulation parameters in real-time to explore dynamical systems and mathematical patterns interactively.

**Highlights:** 2D, 3D, and spherical vector field visualization, Customizable dx, dy, dz equations, Adjustable particle speed, density, and colors, Time-dependent field animation, Interactive 3D view rotation, Real-time rendering powered by Metal

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Vector Field free?

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

### Is Physarum free?

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

### Which has better reviews, Vector Field or Physarum?

Physarum is rated higher. Vector Field averages 4.5 out of 5 from 6 ratings, while Physarum averages 4.8 from 34 ratings.

### Do Vector Field or Physarum have ads?

Neither Vector Field nor Physarum shows ads.

### Which is updated more often, Vector Field or Physarum?

Vector Field ships an update every 3 months, and Physarum every 5 weeks. Most recently, Vector Field was updated on November 3, 2026 and Physarum on November 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.*