# Eng Fluids vs Engineering Math Quiz

The clearest difference is in-app purchases: Eng Fluids at none against Engineering Math Quiz's 7. Eng Fluids also leads on ads (none vs shown) and iOS requirement (9.0 vs 12.0). Engineering Math Quiz's advantage is update cadence (every 3 weeks vs every 13 months). On price and device support there is nothing between them.

Both are free to download. Engineering Math Quiz sells 7 in-app purchases, starting at $4.99 per month. Eng Fluids asks for nothing beyond the download.

Eng Fluids ships an update every 13 months, Engineering Math Quiz every 3 weeks. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Eng Fluids | Engineering Math Quiz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/engineering-math-quiz/id1583491466/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 68 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kurt Gramoll](https://appshunter.io/developer/782218116) | [Arshad Iqbal](https://appshunter.io/developer/1547001151) |

## What reviewers say

### Eng Fluids

[App page](https://appshunter.io/ios/app/eng-fluids/id1540624295)

**Features:** macOS Compatibility

**In-app purchases:** none


### Engineering Math Quiz

[App page](https://appshunter.io/ios/app/engineering-math-quiz/id1583491466)

Practice over 350 engineering math trivia questions with this free iOS app. It offers self-assessment tests and answer keys for various topics, aiding students in their learning and exam preparation.

**Highlights:** 350+ engineering math trivia questions, Self-assessment tests, Answer keys provided, Covers basic and advanced topics, Revision guide for students, Practice for online exams

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Package | $4.99 | per month |
| 3 Months Package | $9.99 | per 3 months |
| 6 Months Package | $14.99 | per 6 months |
| 1 Year Package | $19.99 | per year |
| 1500 Coins | $0.99 | one-time |
| 3500 Coins | $0.99 | one-time |
| 6000 Coins | $2.99 | one-time |


## Frequently asked questions

### Is Eng Fluids free?

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

### Is Engineering Math Quiz free?

Engineering Math Quiz is free to download, with in-app purchases available.

### Do Eng Fluids or Engineering Math Quiz have ads?

Engineering Math Quiz shows ads; Eng Fluids does not.

### Which is updated more often, Eng Fluids or Engineering Math Quiz?

Eng Fluids ships an update every 13 months, and Engineering Math Quiz every 3 weeks. Most recently, Eng Fluids was updated on September 21, 2026 and Engineering Math Quiz on September 7, 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.*