# fluidity HD vs Flasia

The clearest difference is rating: Flasia at 4.6 against fluidity HD's 3.7. Flasia also leads on in-app purchases (none vs 1). fluidity HD's advantage is ads (none vs shown) and update cadence (every 2 months vs every 3 months). On price, review sentiment, ratings volume and device support there is nothing between them.

Both are free to download. fluidity HD sells 1 one-off in-app purchase. Flasia asks for nothing beyond the download.

Flasia holds the better App Store score, 4.6 against 3.7. Both are backed by a comparable volume of ratings — 124 and 145 respectively. Written reviews point the same way: 73% of fluidity HD's written reviews are positive against 76% of Flasia's.

fluidity HD ships an update every 2 months, Flasia every 3 months. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | fluidity HD | Flasia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (124 ratings)](https://appshunter.io/ios/app/fluidity-hd/id399403909/reviews) | **[4.6 (145 ratings)](https://appshunter.io/ios/app/flasia/id1076407250/reviews)** |
| Number of ratings | 124 | **145** |
| Positive reviews | 73.3% of reviews | **76.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 24 MB | 89 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [nebulus design](https://appshunter.io/developer/351409194) | [SungLab Inc](https://appshunter.io/developer/1691666995) |

## What reviewers say

### fluidity HD

[App page](https://appshunter.io/ios/app/fluidity-hd/id399403909)

Experience a beautiful, real-time fluid dynamics simulation. Control the flow and colors of liquids with intuitive touch gestures. Unlock advanced features like ambient audio and video output through an in-app purchase.

**Highlights:** Real-time fluid dynamics simulation, Interactive touch controls, Stunning color customization, Ambient audio (in-app purchase), Snapshot and video output (in-app purchase)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version Unlock | $1.99 | one-time |

**What reviewers like**

- 🌈 Visually stunning and mesmerizing
- 🧘‍♀️ Calming and relaxing experience
- 🎨 Vibrant and customizable colors
- 👍 Great for kids and adults

**What reviewers complain about**

- 🐛 Crashes and freezes on some devices
- 🔇 Lack of audio/music features
- 💰 Paid version not worth the cost
- 🔋 High battery consumption

**Reported bugs**

- Crashes on double-tap
- Incompatible with newer iOS
- Stuck finger gestures

**Requested features**

- Add music/ambient sound options
- Ability to save/export creations
- More customization controls
- Support for latest iOS versions


### 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


## Frequently asked questions

### Is fluidity HD free?

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

### Is Flasia free?

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

### Which has better reviews, fluidity HD or Flasia?

Flasia is rated higher. fluidity HD averages 3.7 out of 5 from 124 ratings, while Flasia averages 4.6 from 145 ratings.

### Do fluidity HD or Flasia have ads?

Flasia shows ads; fluidity HD does not.

### Which is updated more often, fluidity HD or Flasia?

fluidity HD ships an update every 2 months, and Flasia every 3 months. Most recently, fluidity HD was updated on September 28, 2026 and Flasia on September 30, 2026.

---

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