# Electrical Troubleshooter vs NEC Code Studio & Tools

The clearest difference is price: Electrical Troubleshooter at Free against NEC Code Studio & Tools's $2.99. Electrical Troubleshooter also leads on iOS requirement (14.0 vs 17.6). NEC Code Studio & Tools's advantage is update cadence (monthly vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

Electrical Troubleshooter is free to download; NEC Code Studio & Tools costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Electrical Troubleshooter ships an update every 4 months, NEC Code Studio & Tools monthly. The most recent releases landed on October 4, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Electrical Troubleshooter | NEC Code Studio & Tools |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.5 (13 ratings)](https://appshunter.io/ios/app/electrical-troubleshooter/id1345925300/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free | — |
| Size | 14 MB | 494 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## What reviewers say

### Electrical Troubleshooter

[App page](https://appshunter.io/ios/app/electrical-troubleshooter/id1345925300)

Learn electrical troubleshooting skills using a virtual voltmeter. Solve circuit problems with the fewest tries and shortest time to earn a "5 Star Troubleshooter" certification.

**Highlights:** Voltmeter simulation for electrical troubleshooting, Ten circuits per game, Circuit types: Open, Short, No Problem, Minimize tries and time to solve, Earn "5 Star Troubleshooter" certification

**Features:** macOS Compatibility

**In-app purchases:** none


### NEC Code Studio & Tools

[App page](https://appshunter.io/ios/app/nec-code-studio-and-tools/id6760605985)

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Troubleshooter free?

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

### Is NEC Code Studio & Tools free?

NEC Code Studio & Tools costs $2.99, with no in-app purchases.

### Do Electrical Troubleshooter or NEC Code Studio & Tools have ads?

Neither Electrical Troubleshooter nor NEC Code Studio & Tools shows ads.

### Which is updated more often, Electrical Troubleshooter or NEC Code Studio & Tools?

Electrical Troubleshooter ships an update every 4 months, and NEC Code Studio & Tools monthly. Most recently, Electrical Troubleshooter was updated on October 4, 2026 and NEC Code Studio & Tools on October 2, 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.*