# Particle Music vs EchoSketch

The clearest difference is price: Particle Music at Free against EchoSketch's $7.99. EchoSketch's advantage is in-app purchases (none vs 1) and update cadence (every 2 days vs every 174 months). On ads, monetization model, device support and iOS requirement there is nothing between them.

Particle Music is free to download; EchoSketch costs $7.99 up front. Particle Music sells 1 one-off in-app purchase. EchoSketch asks for nothing beyond the download.

Particle Music ships an update every 174 months, EchoSketch every 2 days. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Particle Music | EchoSketch |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/echosketch-performance-delay/id6794466741/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 174 months | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 4 MB | 5 MB |
| Requires iOS | 18.0 | **17** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Steve Joslin](https://appshunter.io/developer/495079273) | [Avi Bortnick](https://appshunter.io/developer/421929037) |

## What reviewers say

### Particle Music

[App page](https://appshunter.io/ios/app/particle-music/id528887805)

Create generative music by dropping particles into a physics-driven playground. Collisions trigger notes, with particle size determining pitch and color influencing sound. Shape bumpers to alter audio and build unique compositions.

**Highlights:** Physics-driven particle collisions for sound generation, Adjustable particle size for pitch control, Customizable particle colors and voice layers, Configurable bumper shapes with audio effects, Four independent voice layers with waveform morphing, Support for 6 musical scales and microtonal import, Gyroscope control and physics simulation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Particle Music Pro | $9.99 | one-time |


### EchoSketch

[App page](https://appshunter.io/ios/app/echosketch-performance-delay/id6794466741)

Shape delay and reverb effects in real-time with a playable X/Y performance surface. Explore four distinct delay types and multiple reverb options, with extensive parameter control for unique sound morphing. Works as a standalone app or an Audio Unit plugin.

**Highlights:** X/Y performance surface for real-time sound shaping, Four distinct delay types: digital, analog, reverse, ping-pong, Spring, plate, and hall convolution reverb, Modulation and tone control for echoes, HOLD, LIFT, FREEZE, and MOTION performance gestures, Standalone app and AUv3 plugin compatibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Particle Music free?

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

### Is EchoSketch free?

EchoSketch costs $7.99, with no in-app purchases.

### Do Particle Music or EchoSketch have ads?

Neither Particle Music nor EchoSketch shows ads.

### Which is updated more often, Particle Music or EchoSketch?

Particle Music ships an update every 174 months, and EchoSketch every 2 days. Most recently, Particle Music was updated on October 8, 2026 and EchoSketch on October 14, 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.*