# Touch Fluids vs Clausius

The clearest difference is price: Clausius at Free against Touch Fluids's $0.99. Clausius also leads on iOS requirement (15.4 vs 17.2). On rating, ratings volume, update cadence and ads there is nothing between them.

Clausius is free to download; Touch Fluids costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Touch Fluids against 5.0 for Clausius. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Touch Fluids ships an update every 13 months, Clausius every 8 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Touch Fluids | Clausius |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/touch-fluids/id427420343/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/clausius/id1023474133/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 8 months** |
| Monetization | Paid | **Free** |
| Size | 15 MB | 3 MB |
| Requires iOS | 17.2 | **15.4** |
| Devices | iPhone, iPad | iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Smitesh Bakrania](https://appshunter.io/developer/1609864392) |

## What reviewers say

### Touch Fluids

[App page](https://appshunter.io/ios/app/touch-fluids/id427420343)

An educational tool for fluid mechanics courses, featuring basic equations and animations. It covers topics from fluid statics to flow in pipes, suitable for high school and university students. Teachers can use it to present concepts in class.

**Highlights:** Basic fluid mechanics equations, Illustrative animations, Fluid statics, Fluid in motion, Continuity and energy equations, Flow in pipes, Vector operations

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

**In-app purchases:** none


### Clausius

[App page](https://appshunter.io/ios/app/clausius/id1023474133)

Visualize thermodynamic properties of water with an intuitive, interactive chart. Ideal for engineering students, it allows users to glide their finger across T-s, P-h, and P-v diagrams to instantly access data. This tool simplifies complex thermodynamic concepts for educational purposes.

**Highlights:** Interactive thermodynamic property charts, Visual reference for water properties, T-s, P-h, and P-v diagrams, Intuitive finger-glide interface, Suitable for engineering courses

**In-app purchases:** none


## Frequently asked questions

### Is Touch Fluids free?

Touch Fluids costs $0.99, with no in-app purchases.

### Is Clausius free?

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

### Which has better reviews, Touch Fluids or Clausius?

Touch Fluids and Clausius are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Touch Fluids or Clausius have ads?

Neither Touch Fluids nor Clausius shows ads.

### Which is updated more often, Touch Fluids or Clausius?

Touch Fluids ships an update every 13 months, and Clausius every 8 months. Most recently, Touch Fluids was updated on November 1, 2026 and Clausius on November 1, 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.*