# Fluids & Particle Simulation vs SAHRGrid

The clearest difference is in-app purchases: SAHRGrid at none against Fluids & Particle Simulation's 8. Fluids & Particle Simulation's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Fluids & Particle Simulation sells 8 in-app purchases, starting at $2.99 per 7 days. SAHRGrid asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 23, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Fluids & Particle Simulation | SAHRGrid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (777 ratings)](https://appshunter.io/ios/app/fluids-and-particle-simulation/id1532653221/reviews)** | — |
| Number of ratings | **777** | — |
| Positive reviews | 89.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 189 MB | 3 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [ZipoApps](https://appshunter.io/developer/1671444635) | [Sarah Alhussaini](https://appshunter.io/developer/1887919069) |

## What reviewers say

### Fluids & Particle Simulation

[App page](https://appshunter.io/ios/app/fluids-and-particle-simulation/id1532653221)

Create mesmerizing, psychedelic fluid art with your fingertips. This app offers a calming and creative outlet to reduce stress and channel negative emotions into beautiful, flowing patterns. Enjoy a unique ASMR experience with sound-reactive visuals and customizable parameters.

**Highlights:** Interactive fluid art simulation, Sound-reactive fluids, Dozens of customizable parameters, Autopilot mode, Gyrosensor and haptic feedback integration, Real-time sound synthesis, Video recording and screenshot functionality

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $2.99 | per 7 days |
| Unlock all \| monthly premium | $5.99 | per month |
| Fluids PRO | $17.99 | per year |
| Unlock all Presets (iOS) | $1.99 | one-time |
| Unlock all Presets (OS X Mac) | $2.99 | one-time |
| Unlock all features | $14.99 | one-time |
| Psychedelic magic (OS X Mac) | $24.99 | one-time |
| Psychedelic magic (iOS) | $44.99 | one-time |

**What reviewers like**

- 🚀 Mesmerizing visuals
- 👍 Relaxing and calming experience
- 🎨 Customizable color and fluid effects
- 🎶 Enjoyable audio/music integration
- 💡 Innovative and creative app concept

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔋 Device overheating issues
- 💰 Paid features may be too expensive
- 🔇 Lack of volume/audio control options

**Reported bugs**

- Microphone input not working as expected
- Difficulty resetting or restoring default settings

**Requested features**

- Ability to sync visuals with external audio/music
- More preset options and visual effects
- Improved UI/UX for settings and controls
- Support for casting to external displays


### SAHRGrid

[App page](https://appshunter.io/ios/app/sahrgrid/id6761329419)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fluids & Particle Simulation free?

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

### Is SAHRGrid free?

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

### Do Fluids & Particle Simulation or SAHRGrid have ads?

Neither Fluids & Particle Simulation nor SAHRGrid shows ads.

### Which is updated more often, Fluids & Particle Simulation or SAHRGrid?

Fluids & Particle Simulation ships an update monthly, and SAHRGrid monthly. Most recently, Fluids & Particle Simulation was updated on October 23, 2026 and SAHRGrid on October 6, 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.*