# Electrical Engineering vs CRUMB

The clearest difference is price: Electrical Engineering at Free against CRUMB's $7.99. Electrical Engineering also leads on rating (4.8 vs 4.4) and review sentiment (74% vs 56%). CRUMB's advantage is in-app purchases (none vs 8) and ads (none vs shown). On device support there is nothing between them.

Electrical Engineering is free to download; CRUMB costs $7.99 up front. Electrical Engineering sells 7 in-app purchases, starting at $3.99 per month. CRUMB asks for nothing beyond the download.

Electrical Engineering holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: CRUMB has 138 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 74% of Electrical Engineering's written reviews are positive against 56% of CRUMB's.

Electrical Engineering ships an update every 2 months, CRUMB weekly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Electrical Engineering | CRUMB |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/electrical-engineering-quiz/id1330321712/reviews)** | [4.4 (138 ratings)](https://appshunter.io/ios/app/crumb/id1639868071/reviews) |
| Number of ratings | 12 | **138** |
| Positive reviews | **73.9% of reviews** | 55.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#182** |
| Size | 115 MB | 496 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlo Terracciano](https://appshunter.io/developer/1159639539) | [Vital Group Limited](https://appshunter.io/developer/1355662516) |

## What reviewers say

### Electrical Engineering

[App page](https://appshunter.io/ios/app/electrical-engineering-quiz/id1330321712)

This app provides electrical calculations and fundamental concepts for students and professionals. It covers Ohm's Law, power calculations, circuit analysis, and advanced topics like wire sizing and power factor correction.

**Highlights:** Electrical calculations, Basic electrical knowledge, Advanced electrical topics, Ohm's Law and power calculations, Circuit analysis theorems, Wire sizing and voltage drop, Resistor color codes

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription - Electro | $3.99 | per month |
| Monthly subscription - Electro | $5.99 | per month |
| Annual Subscription Electronic | $8.99 | per year |
| Annual Subscription Electronic | $24.99 | per year |
| Annual Subscription Electronic | $24.99 | per year |
| Lifetime Subscription Electro | $29.99 | one-time |
| Circuits & Electric Machines | $99.99 | one-time |


### CRUMB

[App page](https://appshunter.io/ios/app/crumb/id1639868071)

**Currently charting:** #182 Top Paid · Productivity (US App Store)

Explore and build electronic circuits in an interactive 3D environment. Learn circuit basics, experiment with components, and analyze performance with built-in tools without the risk of damaging real parts.

**Highlights:** Interactive 3D circuit construction, Wide selection of electronic components, Study transistors and audio filtering, Program EEPROMs, Built-in oscilloscope and analysis views, Prototype analysis before real-world construction

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great for beginners
- 💡 Good for learning new skills
- ✨ Simple to put things together
- 🎨 Great graphics
- 🧩 Plenty of components

**What reviewers complain about**

- ❌ Very limited components
- ❌ Lacks modern components
- 🐛 Crashing frequently
- 🐛 App crashes when using corners
- 🐛 Crashing on Mac

**Reported bugs**

- App crashes when using the “corners” option on jumper wires
- Experienced some crashing on Mac
- Component images do not rotate
- Power rails are backwards related to real life breadboards
- Program counters (74HC161) do not reset to 0 on a reset signal

**Requested features**

- Implement modern components (TI IC, LTC series)
- Add 12 segment display
- Add Arduino and other microcontrollers
- Add a spot to code Arduino/microcontrollers
- Allow custom wire colors


## Frequently asked questions

### Is Electrical Engineering free?

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

### Is CRUMB free?

CRUMB costs $7.99, with no in-app purchases.

### Which has better reviews, Electrical Engineering or CRUMB?

Electrical Engineering is rated higher. Electrical Engineering averages 4.8 out of 5 from 12 ratings, while CRUMB averages 4.4 from 138 ratings.

### Do Electrical Engineering or CRUMB have ads?

Electrical Engineering shows ads; CRUMB does not.

### Which is updated more often, Electrical Engineering or CRUMB?

Electrical Engineering ships an update every 2 months, and CRUMB weekly. Most recently, Electrical Engineering was updated on October 16, 2026 and CRUMB on October 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.*