# Eng Fluids vs Material Engineering

The clearest difference is in-app purchases: Eng Fluids at none against Material Engineering's 6. Eng Fluids also leads on iOS requirement (9.0 vs 17.0). Material Engineering's advantage is update cadence (every 3 months vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Material Engineering sells 6 in-app purchases, starting at $9.99 per month. Eng Fluids asks for nothing beyond the download.

Eng Fluids ships an update every 13 months, Material Engineering every 3 months. The most recent releases landed on September 21, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Eng Fluids | Material Engineering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/material-engineering/id6739977362/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 17 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kurt Gramoll](https://appshunter.io/developer/782218116) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### Eng Fluids

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Material Engineering

[App page](https://appshunter.io/ios/app/material-engineering/id6739977362)

Master material science concepts with an engaging quiz app. Explore diverse topics, receive instant feedback, and track your progress. Perfect for students, professionals, and enthusiasts seeking to deepen their understanding of materials.

**Highlights:** Comprehensive quizzes on various material types, Expert-designed challenging questions, Instant feedback with detailed explanations, Personalized progress tracking and analytics, Diverse quiz modes (practice, timed, topic-focused), Achievements and leaderboards

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


## Frequently asked questions

### Is Eng Fluids free?

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

### Is Material Engineering free?

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

### Do Eng Fluids or Material Engineering have ads?

Neither Eng Fluids nor Material Engineering shows ads.

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

Eng Fluids ships an update every 13 months, and Material Engineering every 3 months. Most recently, Eng Fluids was updated on September 21, 2026 and Material Engineering on July 6, 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.*