# Fluid Mechanics Calculator vs Math. Trainer App

The clearest difference is price: Math. Trainer App at Free against Fluid Mechanics Calculator's $0.99. Math. Trainer App also leads on update cadence (every 3 weeks vs every 35 months). Fluid Mechanics Calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Math. Trainer App is free to download; Fluid Mechanics Calculator costs $0.99 up front. Math. Trainer App sells 1 one-off in-app purchase. Fluid Mechanics Calculator asks for nothing beyond the download.

Fluid Mechanics Calculator ships an update every 35 months, Math. Trainer App every 3 weeks. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Fluid Mechanics Calculator | Math. Trainer App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/math-trainer-app/id6757082686/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 35 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 39 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [loay setrak](https://appshunter.io/developer/923932983) | [Blatt, Inc](https://appshunter.io/developer/1779835943) |

## What reviewers say

### Fluid Mechanics Calculator

[App page](https://appshunter.io/ios/app/fluid-mechanics-calculator/id1297964597)

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

**In-app purchases:** none


### Math. Trainer App

[App page](https://appshunter.io/ios/app/math-trainer-app/id6757082686)

This app helps high school students memorize math formulas quickly for exams and homework. It features a formula bank, trainer mode with spaced repetition, and progress tracking to build long-term memory and confidence.

**Highlights:** Formula Bank (Algebra, Geometry, Trigonometry), Trainer Mode with Spaced Repetition, Adaptive Learning, Progress Tracking, Customizable Repetitions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Removing ads | $1.99 | one-time |


## Frequently asked questions

### Is Fluid Mechanics Calculator free?

Fluid Mechanics Calculator costs $0.99, with no in-app purchases.

### Is Math. Trainer App free?

Math. Trainer App is free to download, with in-app purchases available.

### Do Fluid Mechanics Calculator or Math. Trainer App have ads?

Math. Trainer App shows ads; Fluid Mechanics Calculator does not.

### Which is updated more often, Fluid Mechanics Calculator or Math. Trainer App?

Fluid Mechanics Calculator ships an update every 35 months, and Math. Trainer App every 3 weeks. Most recently, Fluid Mechanics Calculator was updated on September 9, 2026 and Math. Trainer App on September 19, 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.*