# Material Engineering vs iCTF

The clearest difference is price: Material Engineering at Free against iCTF's $3.99. iCTF's advantage is in-app purchases (none vs 6) and iOS requirement (13.0 vs 17.0). On update cadence, ads and device support there is nothing between them.

Material Engineering is free to download; iCTF costs $3.99 up front. Material Engineering sells 6 in-app purchases, starting at $9.99 per month. iCTF asks for nothing beyond the download.

Material Engineering ships an update every 3 months, iCTF every 2 months. The most recent releases landed on July 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Material Engineering | iCTF |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/material-engineering/id6739977362/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 24 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) | [Jeremy Laratro](https://appshunter.io/developer/1864044207) |

## What reviewers say

### 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 |


### iCTF

[App page](https://appshunter.io/ios/app/ictf/id6756991047)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Material Engineering free?

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

### Is iCTF free?

iCTF costs $3.99, with no in-app purchases.

### Do Material Engineering or iCTF have ads?

Neither Material Engineering nor iCTF shows ads.

### Which is updated more often, Material Engineering or iCTF?

Material Engineering ships an update every 3 months, and iCTF every 2 months. Most recently, Material Engineering was updated on July 6, 2026 and iCTF on September 24, 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.*