# Spiro Sketch vs Particle Lab

The clearest difference is price: Particle Lab at Free against Spiro Sketch's $0.99. Particle Lab also leads on in-app purchases (none vs 1). Spiro Sketch's advantage is iOS requirement (15.0 vs 18.6). On update cadence, ads and device support there is nothing between them.

Particle Lab is free to download; Spiro Sketch costs $0.99 up front. Spiro Sketch sells 1 one-off in-app purchase. Particle Lab asks for nothing beyond the download.

Spiro Sketch ships an update weekly, Particle Lab every 4 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Spiro Sketch | Particle Lab |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/particle-lab/id6756907817/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | — | Free |
| Size | 8 MB | 19 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [hyeonsu jeong](https://appshunter.io/developer/1628268684) | [youngchil cho](https://appshunter.io/developer/868612955) |

## What reviewers say

### Spiro Sketch

[App page](https://appshunter.io/ios/app/spiro-sketch/id6651858602)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All-Access Pass | $1.99 | one-time |


### Particle Lab

[App page](https://appshunter.io/ios/app/particle-lab/id6756907817)

Experience a physics simulation sandbox where tens of thousands of particles interact in real-time. Control environmental conditions like gravity and wind with intuitive sliders to observe dramatic changes in particle behavior. Customize visual effects and create your own miniature universe.

**Highlights:** Real-time particle interaction, Customizable environmental conditions (gravity, wind), Interactive touch and drag controls, Visual customization (color, size, glow), High-performance physics engine, Relaxing and meditative experience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spiro Sketch free?

Spiro Sketch costs $0.99, and also offers in-app purchases.

### Is Particle Lab free?

Particle Lab is free to download, with no in-app purchases.

### Do Spiro Sketch or Particle Lab have ads?

Neither Spiro Sketch nor Particle Lab shows ads.

### Which is updated more often, Spiro Sketch or Particle Lab?

Spiro Sketch ships an update weekly, and Particle Lab every 4 days. Most recently, Spiro Sketch was updated on October 27, 2026 and Particle Lab on October 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.*