# TangledString vs Fluidium

The clearest difference is in-app purchases: TangledString at none against Fluidium's 1. TangledString also leads on iOS requirement (15.6 vs 17.6). Fluidium's advantage is update cadence (every 2 days vs every 42 months). On price, ads and device support there is nothing between them.

Both are free to download. Fluidium sells 1 one-off in-app purchase. TangledString asks for nothing beyond the download.

TangledString ships an update every 42 months, Fluidium every 2 days. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | TangledString | Fluidium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (18 ratings)](https://appshunter.io/ios/app/fluidium/id6745104628/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 270 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yukihiro Shioya](https://appshunter.io/developer/1565306192) | [Colordodge Labs](https://appshunter.io/developer/376551726) |

## What reviewers say

### TangledString

[App page](https://appshunter.io/ios/app/tangledstring/id1596545427)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fluidium

[App page](https://appshunter.io/ios/app/fluidium/id6745104628)

Experience a mesmerizing world of living color and motion that responds to your touch. Create unique, breathtaking visuals, relax, explore creativity, or generate stunning videos and wallpapers.

**Highlights:** Interactive fluid simulation, 130+ factory presets, Custom preset design, 4 expressive brush types, HD video recording, Wallpaper generation, Smart Pause and Auto-Play modes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fluidium Pro Mode Unlock | $4.99 | one-time |


## Frequently asked questions

### Is TangledString free?

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

### Is Fluidium free?

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

### Do TangledString or Fluidium have ads?

Neither TangledString nor Fluidium shows ads.

### Which is updated more often, TangledString or Fluidium?

TangledString ships an update every 42 months, and Fluidium every 2 days. Most recently, TangledString was updated on September 18, 2026 and Fluidium on September 24, 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.*