# Electrical Troubleshooting MS vs Backflow Buddy

The clearest difference is price: Electrical Troubleshooting MS at Free against Backflow Buddy's $1.99. Electrical Troubleshooting MS also leads on rating (4.8 vs 3.7) and review sentiment (88% vs 50%). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

Electrical Troubleshooting MS is free to download; Backflow Buddy costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Electrical Troubleshooting MS holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Electrical Troubleshooting MS has 118 ratings behind it against 3, 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 50% of Backflow Buddy's.

Electrical Troubleshooting MS ships an update weekly, Backflow Buddy fortnightly. The most recent releases landed on October 7, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Electrical Troubleshooting MS | Backflow Buddy |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (118 ratings)](https://appshunter.io/ios/app/electrical-troubleshooting-ms/id1562565451/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/backflow-buddy/id6475203858/reviews) |
| Number of ratings | **118** | 3 |
| Positive reviews | **88.2% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | **Free** | Paid |
| Size | 22 MB | 258 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Greg Phillips](https://appshunter.io/developer/1723623593) |

## 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


### Backflow Buddy

[App page](https://appshunter.io/ios/app/backflow-buddy/id6475203858)

This app simulates backflow prevention devices and their testing procedures. It offers customizable water pressure simulations and quizzes to prepare users for certification exams.

**Highlights:** RPZ and Test Gauge simulation, Double Check and Test Gauge simulation, Customizable internal water pressure, Differential pressure gauge simulation, Quiz preparation with multiple lengths, Randomized industry-expert questions, Comprehensive quiz results

**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 Backflow Buddy free?

Backflow Buddy costs $1.99, with no in-app purchases.

### Which has better reviews, Electrical Troubleshooting MS or Backflow Buddy?

Electrical Troubleshooting MS is rated higher. Electrical Troubleshooting MS averages 4.8 out of 5 from 118 ratings, while Backflow Buddy averages 3.7 from 3 ratings.

### Do Electrical Troubleshooting MS or Backflow Buddy have ads?

Backflow Buddy shows ads; Electrical Troubleshooting MS does not.

### Which is updated more often, Electrical Troubleshooting MS or Backflow Buddy?

Electrical Troubleshooting MS ships an update weekly, and Backflow Buddy fortnightly. Most recently, Electrical Troubleshooting MS was updated on October 7, 2026 and Backflow Buddy on September 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*