# C.L.U.S.T.E.R vs Fluid Simulation

The clearest difference is price: Fluid Simulation at Free against C.L.U.S.T.E.R's $0.99. Fluid Simulation also leads on update cadence (every 3 days vs every 3 weeks). C.L.U.S.T.E.R's advantage is rating (3.3 vs 1.0) and in-app purchases (none vs 5). On review sentiment and device support there is nothing between them.

Fluid Simulation is free to download; C.L.U.S.T.E.R costs $0.99 up front. Fluid Simulation sells 5 in-app purchases, starting at $1.99 per 7 days. C.L.U.S.T.E.R asks for nothing beyond the download.

C.L.U.S.T.E.R holds the better App Store score, 3.3 against 1.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

C.L.U.S.T.E.R ships an update every 3 weeks, Fluid Simulation every 3 days. The most recent releases landed on November 12, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | C.L.U.S.T.E.R | Fluid Simulation |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.3 (4 ratings)](https://appshunter.io/ios/app/cluster/id1615641667/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/fluid-simulation-liquidtouch/id6809601256/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Paid | — |
| Size | 40 MB | 13 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Horobets](https://appshunter.io/developer/1615641669) | [Appnics, LLC](https://appshunter.io/developer/1452151367) |

## What reviewers say

### C.L.U.S.T.E.R

[App page](https://appshunter.io/ios/app/cluster/id1615641667)

Create unique geometric designs and patterns using intuitive drawing tools. Explore shapes, colors, and symmetry to unleash your imagination and develop spatial thinking. Offers a spatial canvas with multi-level grids for endless creative possibilities.

**Highlights:** Geometric shape drawing, Color and shade customization, Symmetrical pattern creation, Multi-level 2n grid canvas, Zoom, pan, and rotate navigation, Vector graphics

**In-app purchases:** none


### Fluid Simulation

[App page](https://appshunter.io/ios/app/fluid-simulation-liquidtouch/id6809601256)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LIQUIDTOUCH Weekly | $1.99 | per 7 days |
| LIQUIDTOUCH Monthly | $1.99 | per month |
| LIQUIDTOUCH Yearly | $14.99 | per year |
| LIQUIDTOUCH Lifetime | $19.99 | one-time |
| LIQUIDTOUCH Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is C.L.U.S.T.E.R free?

C.L.U.S.T.E.R costs $0.99, with no in-app purchases.

### Is Fluid Simulation free?

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

### Which has better reviews, C.L.U.S.T.E.R or Fluid Simulation?

C.L.U.S.T.E.R is rated higher. C.L.U.S.T.E.R averages 3.3 out of 5 from 4 ratings, while Fluid Simulation averages 1.0 from 1 ratings.

### Do C.L.U.S.T.E.R or Fluid Simulation have ads?

Fluid Simulation shows ads; C.L.U.S.T.E.R does not.

### Which is updated more often, C.L.U.S.T.E.R or Fluid Simulation?

C.L.U.S.T.E.R ships an update every 3 weeks, and Fluid Simulation every 3 days. Most recently, C.L.U.S.T.E.R was updated on November 12, 2026 and Fluid Simulation on November 11, 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.*