# THE WOR[L]D vs Particle Simulation Visualizer

The clearest difference is price: Particle Simulation Visualizer at Free against THE WOR[L]D's $0.99. THE WOR[L]D's advantage is in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

Particle Simulation Visualizer is free to download; THE WOR[L]D costs $0.99 up front. Particle Simulation Visualizer sells 2 in-app purchases, starting at $3.99 per 7 days. THE WOR[L]D asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | THE WOR[L]D | Particle Simulation Visualizer |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 34 MB | 128 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [TSUYOSHI HIROOKA](https://appshunter.io/developer/1864200350) | [Marvin Krueger](https://appshunter.io/developer/1152894281) |

## What reviewers say

### THE WOR[L]D

[App page](https://appshunter.io/ios/app/the-world/id6757014126)

**In-app purchases:** none


### Particle Simulation Visualizer

[App page](https://appshunter.io/ios/app/particle-simulation-visualizer/id6765869491)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Particles PRO | $3.99 | per 7 days |
| Particles PRO | $24.99 | per year |


## Frequently asked questions

### Is THE WOR[L]D free?

THE WOR[L]D costs $0.99, with no in-app purchases.

### Is Particle Simulation Visualizer free?

Particle Simulation Visualizer is free to download, with in-app purchases available.

### Do THE WOR[L]D or Particle Simulation Visualizer have ads?

Neither THE WOR[L]D nor Particle Simulation Visualizer shows ads.

### Which is updated more often, THE WOR[L]D or Particle Simulation Visualizer?

THE WOR[L]D ships an update monthly, and Particle Simulation Visualizer monthly. Most recently, THE WOR[L]D was updated on September 10, 2026 and Particle Simulation Visualizer on September 24, 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.*