# Particle Simulation Visualizer vs Daily Haiku Poems

The clearest difference is iOS requirement: Daily Haiku Poems at 15.1 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 Daily Haiku Poems sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Particle Simulation Visualizer ships an update monthly, Daily Haiku Poems every 2 months. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Particle Simulation Visualizer | Daily Haiku Poems |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 128 MB | 39 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marvin Krueger](https://appshunter.io/developer/1152894281) | [Jan Wagner](https://appshunter.io/developer/1896776525) |

## 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 |


### Daily Haiku Poems

[App page](https://appshunter.io/ios/app/daily-haiku-poems/id6771274967)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2 Haiku Credits | $0.99 | one-time |
| 4 Haiku Starter Credits | $0.99 | one-time |
| 6 Haiku Credits | $1.99 | one-time |
| 10 Haiku Credits | $2.99 | one-time |


## Frequently asked questions

### Is Particle Simulation Visualizer free?

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

### Is Daily Haiku Poems free?

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

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

Neither Particle Simulation Visualizer nor Daily Haiku Poems shows ads.

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

Particle Simulation Visualizer ships an update monthly, and Daily Haiku Poems every 2 months. Most recently, Particle Simulation Visualizer was updated on October 31, 2026 and Daily Haiku Poems on October 28, 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.*