# FractalEcho vs Particle Lab

The clearest difference is review sentiment: FractalEcho at 80% against Particle Lab's 0%. Particle Lab's advantage is in-app purchases (none vs 3) and update cadence (every 4 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FractalEcho sells 3 in-app purchases, starting at $1.99 per month. Particle Lab asks for nothing beyond the download.

FractalEcho ships an update fortnightly, Particle Lab every 4 days. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | FractalEcho | Particle Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (9 ratings)](https://appshunter.io/ios/app/fractalecho/id6473468070/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | **80.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Freemium | **Free** |
| Size | 138 MB | 19 MB |
| Requires iOS | **17.6** | 18.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bluestone Pond](https://appshunter.io/developer/544105988) | [youngchil cho](https://appshunter.io/developer/868612955) |

## What reviewers say

### FractalEcho

[App page](https://appshunter.io/ios/app/fractalecho/id6473468070)

Explore the infinite complexity of fractals with stunning visuals and unparalleled depth. This app offers advanced search capabilities, customization options, and educational insights into mathematical concepts. Share your discoveries and learn through an intuitive interface.

**Highlights:** Unrivaled search depth and resolution, Mandelbrot and Julia Set exploration, Animated colors and dynamic palettes, Calculates fractal border length and area, Community gallery and sharing, In-app tutorial

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FractalEcho Pro monthly | $1.99 | per month |
| FractalEcho Pro Yearly | $14.99 | per year |
| FractalEcho Pro | $24.99 | 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 FractalEcho free?

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

### Is Particle Lab free?

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

### Do FractalEcho or Particle Lab have ads?

Neither FractalEcho nor Particle Lab shows ads.

### Which is updated more often, FractalEcho or Particle Lab?

FractalEcho ships an update fortnightly, and Particle Lab every 4 days. Most recently, FractalEcho was updated on October 14, 2026 and Particle Lab on October 8, 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.*