# Cyclotron

> Interactive particle simulation app for visual stimulation and entertainment. (iPhone/iPad app by PDJ Apps.)

- Source: https://appshunter.io/ios/app/cyclotron/id437961443 (this page in markdown: same URL + `.md`)
- Developer: [PDJ Apps](https://appshunter.io/developer/290231771)
- Category: Entertainment, Education
- Price: $1.99
- Rating: 4.60/5 from 153 App Store ratings · 163 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.1 · 6 MB
- Languages: American English
- Released: 2011-05-22
- Data updated: 2026-09-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cyclotron/id437961443/reviews.md

## What is Cyclotron?

Cyclotron is a fun and satisfying particle app. Touch the screen and the particles go wild. 

Using multiple fingers changes the way the particles behave.

Great to mess with when you're bored and have some time to kill, need visual stimulation or want to keep the kids busy.

## Key features

- Interactive particle simulation
- Multi-touch particle behavior
- Visually stimulating
- Engaging for kids
- Time-killing entertainment

## What do users think of Cyclotron?

Overall sentiment: positive

**Pros**

- 🌟 Mesmerizing visuals
- 👍 Simple and intuitive
- 💡 Unique multitouch interactions
- 🎨 Vibrant color palette
- 🎨 Customizable background

**Cons**

- 🐛 Occasional crashes or freezes
- 🔍 Limited functionality
- 🕰️ Gets boring after a while
- 🤢 Can cause motion sickness
- 💰 Not worth the price for some

**Commonly reported bugs**

- Compatibility issues on older devices
- Inconsistent performance after updates
- Delayed or unresponsive touch inputs

**Most requested features**

- More customization options
- Additional visual modes or effects
- Screenshot/photo capture capability
- Ability to change movement speed
- Integration with music playback

## Recent user reviews (10 of 163)

All indexed reviews: https://appshunter.io/ios/app/cyclotron/id437961443/reviews.md

### 5/5 — Soo good

*2023-04-08*

Love it if you are reading this and want to relax download this app it’s so useful

### 5/5 — Cyclotron

*2020-12-11*

I love how the particles move a lot like liquid oh well how about make a sand game that's liquid acting sand it would be really cool ;)

### 5/5 — Fun and simple

*2019-03-27*

Nice work!

### 5/5 — Awesome developer

*2017-11-19*

I'm on iOS 10. But I'm glad to see you update the app to fix issues for an older firmware.

### 4/5 — Neat but simple

*2017-02-21*

So there are ribbons of color floating around and you can shift them with your finger. There's day and night mode--night mode having a dark background and neon colors. You can take a screenshot of it anytime by clicking the dots on the bottom. It's not complicated and it's kinda soothing.

### 5/5 — 👍

*2017-02-18*

I've been searching for this forever, one of my friends had but never told me the name of it. This has to be one of my favorite time waster ever!!😜

### 5/5 — Great Fun.

*2017-02-18*

This app is so much fun, I keep coming back to it and it is so amazing.

### 5/5 — Something about this makes me smile.

*2016-12-23*

I play with this screen shoot it for neat back rounds. Love it!

### 1/5 — Not the app I purchased.

*2016-02-18*

I bought an app that use to consist of firecrackers that went off when u touched the screen. I'm a little confused as to where that app went and why I have this "cyclotron" app. This is not the app that I paid for.

### 2/5 — Not worth it

*2016-02-05*

Not worth the money. Unless you have a young toddler or baby that needs entertaining, you don't need to buy this app.

## Frequently asked questions about Cyclotron

### What does Cyclotron do?

Cyclotron is an entertainment app that simulates a dynamic particle system. Users can interact with these particles by touching the screen, causing them to react and move wildly. The app provides a visually stimulating and fun experience.

### How does multi-touch affect the particles?

Using multiple fingers on the screen simultaneously changes the way the particles behave. This allows for more complex and varied interactions within the simulation, adding another layer of engagement to the app.

### Is Cyclotron free to use?

Yes, Cyclotron is a free application. There are no costs associated with downloading or using its features, and it does not contain in-app purchases or advertisements.

### Who is Cyclotron for?

This app is great for anyone looking for a fun way to pass the time, seeking visual stimulation, or needing to keep children entertained. It's designed to be engaging and satisfying for a wide range of users.

## Version history (last 5 releases)

### 3.2 — 2019-07-08

Removed the menu button. To show menu now, you must tap a corner of the screen.

### 3.1 — 2016-01-20

This update should fix the issues that some users are having on iOS 8.

### 3.0 — 2016-01-11

This update is a major redesign! The app name was changed from Fun Toy to Cyclotron. A Cyclotron is a particle accelerator used in physics. Now you play the role of an accelerator by using your fingers on the screen.

### 2.1 — 2014-09-30

Changed the app name.

### 2.0 — 2013-10-06

Many updates.

## Apps similar to Cyclotron

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [HugyPro](https://appshunter.io/ios/app/hugypro/id6479186220) | — | Free | Entertainment |
| [Anilyme : Watch Anime](https://appshunter.io/ios/app/anilyme-watch-anime/id6702028521) | 4.2 (3,695) | Free | Entertainment |
| [Fireworks Tap](https://appshunter.io/ios/app/fireworks-tap/id938939446) | 4.6 (99) | $1.99 | Entertainment |
| [KidsFlix TV](https://appshunter.io/ios/app/kidsflix-tv/id1482011870) | 4.5 (540) | Free | Entertainment |
| [#@$%!](https://appshunter.io/ios/app/id1623094511) | 5.0 (3) | Free | Entertainment |
| [Modeling Super App](https://appshunter.io/ios/app/modeling-super-app/id6451214474) | — | Free | Entertainment |

## More apps by PDJ Apps

- [Trippin](https://appshunter.io/ios/app/trippin/id297287188)
- [Sand Garden](https://appshunter.io/ios/app/sand-garden/id343283376)
- [Art in Motion](https://appshunter.io/ios/app/art-in-motion/id385456596)
- [Line Art](https://appshunter.io/ios/app/line-art/id389294575)
- [Tesla Toy](https://appshunter.io/ios/app/tesla-toy/id395767185)
- [Atomic Toy](https://appshunter.io/ios/app/atomic-toy/id403391202)

All apps by PDJ Apps: https://appshunter.io/developer/290231771

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*