# Flasia HD vs Space UI

The clearest difference is review sentiment: Flasia HD at 100% against Space UI's 0%. Flasia HD also leads on rating (4.6 vs 3.0) and ratings volume (11 vs 2). Space UI's advantage is price (Free vs $3.99) and update cadence (every 2 months vs every 5 months). On ads, in-app purchases and monetization model there is nothing between them.

Space UI is free to download; Flasia HD costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Flasia HD holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Flasia HD has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Flasia HD's written reviews are positive against 0% of Space UI's.

Flasia HD ships an update every 5 months, Space UI every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Flasia HD | Space UI |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/flasia-hd/id976926654/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/space-ui/id1494402514/reviews) |
| Number of ratings | **11** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 59 MB | 183 MB |
| Requires iOS | **15.6** | 27.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [SungLab Inc](https://appshunter.io/developer/1691666995) | [256 Arts](https://appshunter.io/developer/1437835951) |

## What reviewers say

### Flasia HD

[App page](https://appshunter.io/ios/app/flasia-hd/id976926654)

This interactive visualizer creates beautiful, artistic displays inspired by natural phenomena like fireworks and fluid dynamics. It offers creative thinking tools and can serve as entertainment or interior decor for art enthusiasts.

**Highlights:** 5-finger multi-touch display, Customizable particle length, number, and size, Two play modes: gesture control and multi-touch drawing, Fluid effect with high FPS, Music options by Aden Ray

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

**In-app purchases:** none


### Space UI

[App page](https://appshunter.io/ios/app/space-ui/id1494402514)

Create realistic sci-fi user interfaces procedurally for video productions or personal projects. Features include interactive displays, alien languages, sound effects, and cross-device syncing. Users can also sync colors with smart home lights.

**Highlights:** Procedural UI generation, Interactive interfaces, Multiple alien languages, Sound effects, Save interface seeds, Cross-device syncing, HomeKit light sync

**Features:** iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Flasia HD free?

Flasia HD costs $3.99, with no in-app purchases.

### Is Space UI free?

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

### Which has better reviews, Flasia HD or Space UI?

Flasia HD is rated higher. Flasia HD averages 4.6 out of 5 from 11 ratings, while Space UI averages 3.0 from 2 ratings.

### Do Flasia HD or Space UI have ads?

Neither Flasia HD nor Space UI shows ads.

### Which is updated more often, Flasia HD or Space UI?

Flasia HD ships an update every 5 months, and Space UI every 2 months. Most recently, Flasia HD was updated on November 1, 2026 and Space UI on November 3, 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.*