# Electrical Troubleshooting MS vs Avionics Pro

The clearest difference is update cadence: Electrical Troubleshooting MS at weekly against Avionics Pro's every 5 months. Electrical Troubleshooting MS also leads on ratings volume (118 vs 2) and iOS requirement (13.0 vs 16.0). Avionics Pro's advantage is rating (5.0 vs 4.8) and review sentiment (100% vs 88%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Avionics Pro 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 2, so its average is the more settled of the two. Written reviews point the same way: 88% of Electrical Troubleshooting MS's written reviews are positive against 100% of Avionics Pro's.

Electrical Troubleshooting MS ships an update weekly, Avionics Pro every 5 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | Electrical Troubleshooting MS | Avionics Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (118 ratings)](https://appshunter.io/ios/app/electrical-troubleshooting-ms/id1562565451/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/avionics-pro/id1617334005/reviews)** |
| Number of ratings | **118** | 2 |
| Positive reviews | 88.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free | Free |
| Size | 22 MB | 17 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Neil Rohan](https://appshunter.io/developer/1522614743) |

## 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


### Avionics Pro

[App page](https://appshunter.io/ios/app/avionics-pro/id1617334005)

This educational tool provides essential calculators and circuit previews for aspiring Aircraft Electronics Technicians. It covers fundamental concepts like impedance, resonance, filters, and transistor bias, with real-world circuit examples tested in simulation and lab environments.

**Highlights:** Impedance calculators (Series/Parallel LRC), Resonance calculators, Filter circuit analysis with frequency response, Time constant calculations (RL/RC), Transistor bias simulation, Oscillator circuit examples

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

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Troubleshooting MS free?

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

### Is Avionics Pro free?

Avionics Pro is free to download, with no in-app purchases.

### Which has better reviews, Electrical Troubleshooting MS or Avionics Pro?

Avionics Pro is rated higher. Electrical Troubleshooting MS averages 4.8 out of 5 from 118 ratings, while Avionics Pro averages 5.0 from 2 ratings.

### Do Electrical Troubleshooting MS or Avionics Pro have ads?

Neither Electrical Troubleshooting MS nor Avionics Pro shows ads.

### Which is updated more often, Electrical Troubleshooting MS or Avionics Pro?

Electrical Troubleshooting MS ships an update weekly, and Avionics Pro every 5 months. Most recently, Electrical Troubleshooting MS was updated on October 7, 2026 and Avionics Pro on October 7, 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.*