# Particle Simulation Visualizer vs Touchlight

The clearest difference is iOS requirement: Touchlight at 16.0 against Particle Simulation Visualizer's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Particle Simulation Visualizer sells 2 in-app purchases, starting at $3.99 per 7 days and Touchlight sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Particle Simulation Visualizer ships an update monthly, Touchlight every 5 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Particle Simulation Visualizer | Touchlight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Size | 128 MB | 2 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marvin Krueger](https://appshunter.io/developer/1152894281) | [永 缪](https://appshunter.io/developer/1891717067) |

## What reviewers say

### 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 |


### Touchlight

[App page](https://appshunter.io/ios/app/touchlight-fluid-relax-and-calm/id6800181497)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |


## Frequently asked questions

### Is Particle Simulation Visualizer free?

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

### Is Touchlight free?

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

### Do Particle Simulation Visualizer or Touchlight have ads?

Neither Particle Simulation Visualizer nor Touchlight shows ads.

### Which is updated more often, Particle Simulation Visualizer or Touchlight?

Particle Simulation Visualizer ships an update monthly, and Touchlight every 5 weeks. Most recently, Particle Simulation Visualizer was updated on October 31, 2026 and Touchlight on October 31, 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.*