# Flasia vs Particle Simulation

Flasia and Particle Simulation both sit at 4.6 stars, but that hides the real split: 76% of Flasia's written reviews are positive against 25% of Particle Simulation's. Flasia also leads on in-app purchases (none vs 4) and update cadence (every 3 months vs every 7 months). Particle Simulation's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.6). On price, rating and device support there is nothing between them.

Both are free to download. Particle Simulation sells 4 in-app purchases, starting at $2.99 per 7 days. Flasia asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Flasia against 4.5 for Particle Simulation. Both are backed by a comparable volume of ratings — 144 and 46 respectively. Written reviews are what separate them: 76% of Flasia's written reviews are positive against 25% of Particle Simulation's.

Flasia ships an update every 3 months, Particle Simulation every 7 months. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Flasia | Particle Simulation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (144 ratings)](https://appshunter.io/ios/app/flasia/id1076407250/reviews)** | [4.5 (46 ratings)](https://appshunter.io/ios/app/particle-simulation-flow-sim/id6467405758/reviews) |
| Number of ratings | **144** | 46 |
| Positive reviews | **76.5% of reviews** | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 87 MB | 132 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SungLab Inc](https://appshunter.io/developer/1691666995) | [Marvin Krueger](https://appshunter.io/developer/1152894281) |

## What reviewers say

### Flasia

[App page](https://appshunter.io/ios/app/flasia/id1076407250)

This app offers a visually stunning and interactive experience with dynamic, artistic displays. It's designed to inspire creativity, provide a change of pace, or serve as unique entertainment and decor.

**Highlights:** 5-Finger Multi-touch Display, Customizable particle effects, Gesture Control and Multi-Touch Drawing modes, Fluid effects with high FPS, Optional music integration

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

**In-app purchases:** none


### Particle Simulation

[App page](https://appshunter.io/ios/app/particle-simulation-flow-sim/id6467405758)

Explore a world of creativity and find tranquility with mesmerizing particle simulations. Interact with dynamic particles, customize their behavior, and create beautiful art impressions while listening to meditative music. It's a calming and creative outlet for stress reduction and self-expression.

**Highlights:** Dynamic particle simulation, Meditative music, Customizable parameters, Autopilot mode, Gyrosensor and haptic feedback, Capture and share creations, Save and load presets

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Particles PRO | $2.99 | per 7 days |
| Psychedelic magic \| monthly | $3.99 | per month |
| Particles PRO | $12.99 | per year |
| Psychedelic magic | $19.99 | one-time |


## Frequently asked questions

### Is Flasia free?

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

### Is Particle Simulation free?

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

### Which has better reviews, Flasia or Particle Simulation?

Flasia is rated higher. Flasia averages 4.6 out of 5 from 144 ratings, while Particle Simulation averages 4.5 from 46 ratings.

### Do Flasia or Particle Simulation have ads?

Flasia shows ads; Particle Simulation does not.

### Which is updated more often, Flasia or Particle Simulation?

Flasia ships an update every 3 months, and Particle Simulation every 7 months. Most recently, Flasia was updated on September 21, 2026 and Particle Simulation on September 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*