# Haiku vs Particle Simulation Visualizer

The clearest difference is update cadence: Haiku at every 6 days against Particle Simulation Visualizer's monthly. Particle Simulation Visualizer's advantage is iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Haiku ships an update every 6 days, Particle Simulation Visualizer monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Haiku | Particle Simulation Visualizer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Size | 3 MB | 128 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [Palomino Software Limited](https://appshunter.io/developer/1792676051) | [Marvin Krueger](https://appshunter.io/developer/1152894281) |

## What reviewers say

### Haiku

[App page](https://appshunter.io/ios/app/haikufy/id6752017762)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $1.99 | one-time |


### 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 Haiku free?

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

### Is Particle Simulation Visualizer free?

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

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

Neither Haiku nor Particle Simulation Visualizer shows ads.

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

Haiku ships an update every 6 days, and Particle Simulation Visualizer monthly. Most recently, Haiku was updated on October 30, 2026 and Particle Simulation Visualizer 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.*