# Electronics Engineer Helper vs Design Materials

The clearest difference is review sentiment: Electronics Engineer Helper at 98% against Design Materials's 33%. Electronics Engineer Helper also leads on ratings volume (436 vs 2) and rating (4.8 vs 4.5). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Electronics Engineer Helper sells 2 in-app purchases, starting at $4.89 per year and Design Materials sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Electronics Engineer Helper holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Electronics Engineer Helper has 436 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 98% of Electronics Engineer Helper's written reviews are positive against 33% of Design Materials's.

Electronics Engineer Helper ships an update monthly, Design Materials every 3 months. The most recent releases landed on September 29, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Electronics Engineer Helper | Design Materials |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (436 ratings)](https://appshunter.io/ios/app/electronics-engineer-helper/id896429646/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/design-materials/id975764691/reviews) |
| Number of ratings | **436** | 2 |
| Positive reviews | **97.7% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 92 MB | 28 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Rostyslav Dovhaliuk](https://appshunter.io/developer/896429649) | [Chrystian Enriquez](https://appshunter.io/developer/428286625) |

## What reviewers say

### Electronics Engineer Helper

[App page](https://appshunter.io/ios/app/electronics-engineer-helper/id896429646)

This app provides a comprehensive suite of calculators and reference tools for electronics enthusiasts and professionals. It includes features for component identification, circuit calculations, and electrical property analysis, aiding in both study and practical work.

**Highlights:** Datasheet search, Resistor color code calculator, Electronic schematic symbols, Pinouts guide, Ohm's law calculator, AWG converter, Unit converter

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year Subscription | $4.89 | per year |
| Lifetime PRO Version | $12.49 | one-time |

**What reviewers like**

- 🚀 Useful tool
- 👍 Comprehensive reference
- 👍 Intuitive and well-designed
- 👍 Saves time and effort
- 👍 Excellent for beginners and professionals

**What reviewers complain about**

- 💰 Some advanced features require paid subscription
- 🇷🇺 Some content in Russian language

**Reported bugs**

- Incorrect resistor color code display for some values
- In-app purchase option not working for some users

**Requested features**

- Add more circuit schematics and examples
- Include ASCII code to decimal, hex, and octal conversion
- Expand the pinout section with more details
- Add active filter (RC, RL, RLC, LC) calculators
- Include digital to analog converter, transistor, and transformer calculators


### Design Materials

[App page](https://appshunter.io/ios/app/design-materials/id975764691)

This app serves as an offline reference guide for various design materials, including polymers and metals. It allows users to manage their own material data, view 3D models, and capture objects with their device's camera. Ideal for professionals and hobbyists involved in product design and 3D printing.

**Highlights:** Offline material reference guide, Custom material and resin management, 3D model viewer and import/export, Object capture via device camera, Favorites and notes section, Cross-device compatibility (iOS, macOS)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bronze member | $7.99 | per month |
| Silver member | $17.99 | per 3 months |
| Gold member | $49.99 | per year |


## Frequently asked questions

### Is Electronics Engineer Helper free?

Electronics Engineer Helper is free to download, with in-app purchases available.

### Is Design Materials free?

Design Materials is free to download, with in-app purchases available.

### Which has better reviews, Electronics Engineer Helper or Design Materials?

Electronics Engineer Helper is rated higher. Electronics Engineer Helper averages 4.8 out of 5 from 436 ratings, while Design Materials averages 4.5 from 2 ratings.

### Do Electronics Engineer Helper or Design Materials have ads?

Neither Electronics Engineer Helper nor Design Materials shows ads.

### Which is updated more often, Electronics Engineer Helper or Design Materials?

Electronics Engineer Helper ships an update monthly, and Design Materials every 3 months. Most recently, Electronics Engineer Helper was updated on September 29, 2026 and Design Materials on September 14, 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.*