# Ech's Fractal vs Sonic Lifeforms

The clearest difference is price: Ech's Fractal at Free against Sonic Lifeforms's $3.99. Ech's Fractal also leads on ratings volume (6 vs 1). Sonic Lifeforms's advantage is rating (5.0 vs 3.7) and update cadence (every 2 weeks vs every 18 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Ech's Fractal is free to download; Sonic Lifeforms costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sonic Lifeforms holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Ech's Fractal has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 75% of Ech's Fractal's written reviews are positive against 100% of Sonic Lifeforms's.

Ech's Fractal ships an update every 18 months, Sonic Lifeforms every 2 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Ech's Fractal | Sonic Lifeforms |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [3.7 (6 ratings)](https://appshunter.io/ios/app/echs-fractal/id1315403987/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sonic-lifeforms/id6444698992/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 weeks** |
| Monetization | **Free** | Paid |
| Size | 36 MB | 350 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Tuan Anh Nguyen](https://appshunter.io/developer/1176103364) | [Michael Doerfler](https://appshunter.io/developer/1656222152) |

## What reviewers say

### Ech's Fractal

[App page](https://appshunter.io/ios/app/echs-fractal/id1315403987)

Explore intricate fractal patterns with customizable depth and color palettes. This application allows users to render the Mandelbrot set with high detail.

**Highlights:** Customizable depth up to 5000, Customizable colors, Mandelbrot set rendering, High detail exploration

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

**In-app purchases:** none


### Sonic Lifeforms

[App page](https://appshunter.io/ios/app/sonic-lifeforms/id6444698992)

Experience a unique, ever-evolving music album that adapts to your mood in real-time. Control the intensity and direction of procedural music with an intuitive interface, accompanied by reactive visuals for a multisensory journey.

**Highlights:** Ever-evolving music album, Mood-adaptive soundscapes, Interactive music control, Procedural music generation, Reactive visualizer, Personalized listening experiences

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ech's Fractal free?

Ech's Fractal is free to download, with no in-app purchases.

### Is Sonic Lifeforms free?

Sonic Lifeforms costs $3.99, with no in-app purchases.

### Which has better reviews, Ech's Fractal or Sonic Lifeforms?

Sonic Lifeforms is rated higher. Ech's Fractal averages 3.7 out of 5 from 6 ratings, while Sonic Lifeforms averages 5.0 from 1 ratings.

### Do Ech's Fractal or Sonic Lifeforms have ads?

Neither Ech's Fractal nor Sonic Lifeforms shows ads.

### Which is updated more often, Ech's Fractal or Sonic Lifeforms?

Ech's Fractal ships an update every 18 months, and Sonic Lifeforms every 2 weeks. Most recently, Ech's Fractal was updated on October 24, 2026 and Sonic Lifeforms on October 27, 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.*