# Electrical Troubleshooting MS vs Material Engineering

The clearest difference is in-app purchases: Electrical Troubleshooting MS at none against Material Engineering's 6. Electrical Troubleshooting MS also leads on update cadence (weekly vs every 3 months) and ratings volume (118 vs 1). Material Engineering's advantage is rating (5.0 vs 4.8). 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. Electrical Troubleshooting MS asks for nothing beyond the download.

Material Engineering holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Electrical Troubleshooting MS has 118 ratings behind it against 1, so its average is the more settled of the two.

Electrical Troubleshooting MS ships an update weekly, Material Engineering every 3 months. The most recent releases landed on September 19, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Electrical Troubleshooting MS | Material Engineering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (118 ratings)](https://appshunter.io/ios/app/electrical-troubleshooting-ms/id1562565451/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/material-engineering/id6739977362/reviews)** |
| Number of ratings | **118** | 1 |
| Positive reviews | 88.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 22 MB | 17 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### Electrical Troubleshooting MS

[App page](https://appshunter.io/ios/app/electrical-troubleshooting-ms/id1562565451)

Learn to troubleshoot electrical circuits with a virtual voltmeter and PLC logic. This app offers 17 random electrical problems for a challenging learning experience, allowing you to practice identifying issues in motor starters and control circuits.

**Highlights:** 17 random electrical problems, Virtual voltmeter with probes, Animated motor starter, Switch between schematic and PLC logic, Troubleshooting Assistant, Normal and troubleshooting modes

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

**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 Electrical Troubleshooting MS free?

Electrical Troubleshooting MS is free to download, with no in-app purchases.

### Is Material Engineering free?

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

### Which has better reviews, Electrical Troubleshooting MS or Material Engineering?

Material Engineering is rated higher. Electrical Troubleshooting MS averages 4.8 out of 5 from 118 ratings, while Material Engineering averages 5.0 from 1 ratings.

### Do Electrical Troubleshooting MS or Material Engineering have ads?

Neither Electrical Troubleshooting MS nor Material Engineering shows ads.

### Which is updated more often, Electrical Troubleshooting MS or Material Engineering?

Electrical Troubleshooting MS ships an update weekly, and Material Engineering every 3 months. Most recently, Electrical Troubleshooting MS was updated on September 19, 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.*