# Touch Fluids vs Rapid Skills Multiplication

The clearest difference is price: Rapid Skills Multiplication at Free against Touch Fluids's $0.99. Rapid Skills Multiplication also leads on update cadence (weekly vs every 13 months) and iOS requirement (15.0 vs 17.2). On ads, in-app purchases and device support there is nothing between them.

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

Touch Fluids ships an update every 13 months, Rapid Skills Multiplication weekly. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Touch Fluids | Rapid Skills Multiplication |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/touch-fluids/id427420343/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Weekly** |
| Monetization | Paid | — |
| Size | 15 MB | 44 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xavier Daxhelet](https://appshunter.io/developer/339056993) | [Outdoor Coders](https://appshunter.io/developer/1574243940) |

## 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


### Rapid Skills Multiplication

[App page](https://appshunter.io/ios/app/rapid-skills-multiplication/id6475053317)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Touch Fluids free?

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

### Is Rapid Skills Multiplication free?

Rapid Skills Multiplication is free to download, with no in-app purchases.

### Do Touch Fluids or Rapid Skills Multiplication have ads?

Neither Touch Fluids nor Rapid Skills Multiplication shows ads.

### Which is updated more often, Touch Fluids or Rapid Skills Multiplication?

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