# KiraFlow vs Particle Simulation

KiraFlow and Particle Simulation both sit at 4.6 stars, but that hides the real split: 78% of KiraFlow's written reviews are positive against 25% of Particle Simulation's. KiraFlow also leads on update cadence (every 2 months vs every 7 months) and ratings volume (315 vs 46). Particle Simulation's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. KiraFlow sells 14 one-off in-app purchases and Particle Simulation sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for KiraFlow against 4.5 for Particle Simulation. That said, the two scores are not equally well evidenced: KiraFlow has 315 ratings behind it against 46, so its average is the more settled of the two. Written reviews are what separate them: 78% of KiraFlow's written reviews are positive against 25% of Particle Simulation's.

KiraFlow ships an update every 2 months, Particle Simulation every 7 months. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | KiraFlow | Particle Simulation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (315 ratings)](https://appshunter.io/ios/app/kiraflow-flowing-glitter/id1525172102/reviews)** | [4.5 (46 ratings)](https://appshunter.io/ios/app/particle-simulation-flow-sim/id6467405758/reviews) |
| Number of ratings | **315** | 46 |
| Positive reviews | **78.2% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 83 MB | 132 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masataka Hakozaki](https://appshunter.io/developer/323346554) | [Marvin Krueger](https://appshunter.io/developer/1152894281) |

## What reviewers say

### KiraFlow

[App page](https://appshunter.io/ios/app/kiraflow-flowing-glitter/id1525172102)

Experience a calming and interactive art piece with flowing glitter particles that react to your device's tilt and touch. Enjoy a variety of glitter types and soothing twinkle sound effects to relax and unwind.

**Highlights:** Flowing glitter particles, Interactive tilt and touch controls, Various glitter types (stars, gems, etc.), Twinkle sound effects, Calming and sleep aid, Particle-based fluid simulation

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PACK 001 "TINY" | $0.99 | one-time |
| PACK 003 "LAME" | $0.99 | one-time |
| PACK 004 "GALAXY" | $0.99 | one-time |
| PACK 005 "PHOTON" | $0.99 | one-time |
| PACK 006 "GEM" | $0.99 | one-time |
| PACK 007 "BLOOM" | $0.99 | one-time |
| PACK 010 "DOT" | $0.99 | one-time |
| PACK 011 "NEON" | $0.99 | one-time |
| PACK 015 "RAINBOW" | $0.99 | one-time |
| PACK 017 "STAR II" | $0.99 | one-time |
| PACK 013 "BUBBLE" | $0.99 | one-time |
| PACK 008 "HALF" | $0.99 | one-time |
| ADS REMOVAL | $1.99 | one-time |
| COMPLETE PACK | $6.99 | one-time |

**What reviewers like**

- ✨ Beautiful visuals
- 😌 Relaxing and calming
- 🤩 Mesmerizing and satisfying
- 🎶 Pleasant sounds/ASMR
- 👍 Easy to use

**What reviewers complain about**

- 😩 Too many ads
- 💰 Expensive full version/packs
- 🐌 Slow glitter movement (for some)
- 🚫 Can't save work
- ❌ Laggy performance (for some)

**Reported bugs**

- No sound issue
- App kicks out on startup
- Not received money taken immediately

**Requested features**

- Option to adjust glitter speed
- More sound options or sound customization
- Ability to save creations/screenshots
- More free glitter color options
- Option to create custom glitter colors/gradients


### 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 KiraFlow free?

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

### Is Particle Simulation free?

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

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

KiraFlow is rated higher. KiraFlow averages 4.6 out of 5 from 315 ratings, while Particle Simulation averages 4.5 from 46 ratings.

### Do KiraFlow or Particle Simulation have ads?

KiraFlow shows ads; Particle Simulation does not.

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

KiraFlow ships an update every 2 months, and Particle Simulation every 7 months. Most recently, KiraFlow was updated on September 24, 2026 and Particle Simulation on September 9, 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.*