Comparison

Electrical Troubleshooting MS vs Sentry Road Training

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Electrical Troubleshooting MS

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
Read full description

Totally FREE! No ads or pop-ups! How this App Works: This app has 17 different electrical problems that are randomly selected to provide a fun and challenging learning experience. It is certain to help you become more proficient in troubleshooting with a voltmeter. The motor starter is animated so that you can SEE the different contact configurations between forward and reverse. Another unique feature of this app is the ability to instantly switch back and forth between the control schematic and the real time PLC logic. There is also a "Troubleshooting Assistant" to help test the control circuit and find the problems. The app is initially in normal mode. This allows you to experience: - How a reversing starter works. - How to use the virtual voltmeter probes to measure voltages at various test points (small black squares, which turn red when the voltmeter makes contact with them) in the control circuit. - Analyze the PLC logic, when the starter is in various control modes Run (FWD & Rev), Off and Auto (FWD & REV). The HMI only has control in Auto. The selector switches work as indicated by control circuit. After the you understand how the motor starter works in the various control modes, you can check your troubleshooting skills by going to "Settings" (touch the 'More' button (at the top of the app) and then the gear icon) and selecting troubleshooting mode. Touch the "Arrow Back" icon to return to the control schematic. You will notice that the screen background has turned a light green, indicating that it is in troubleshooting mode and has a problem that needs to be found. Use the "Troubleshooting assistant" at the top, right side of the control schematic to help set the operator switches for testing. Use the voltmeter probes and PLC logic screen to identify the problem. Once you believe that you have identified the problem, touch "Problem Identified" button at the top of the app. A list of possible problems will appear. If you cannot determine the problem, at the bottom of the list, there is an item to provide the answer. If you desire to put the control system back in to normal (Non Troubleshooting Mode - No electrical problems) to learn more about how it is suppose to work, go to the settings section and unselect "Troubleshooting Mode". It is truly a great learning tool for anybody that wants to be able to fully utilize a voltmeter to troubleshoot a control circuit.

About

Sentry Road Training

Features
Read full description

Sentry Road Training is a modern educational platform designed to provide easy access to digital learning content anytime and anywhere. The app offers a simple and user-friendly experience for accessing courses, educational materials, videos, quizzes, assignments, and important updates directly from your mobile device. Features: - Access educational courses and learning materials - Watch videos and interactive content - Complete quizzes and activities - Receive notifications and updates - Track progress and course completion - Learn anytime from your smartphone or tablet Sentry Road Training helps make digital learning more flexible, organized, and accessible in one convenient platform.

Screenshots

Electrical Troubleshooting MS4 screens
Sentry Road Training4 screens

Verdict

The call

The clearest difference is update cadence: Electrical Troubleshooting MS at weekly against Sentry Road Training's every 5 weeks. Electrical Troubleshooting MS also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Electrical Troubleshooting MS ships an update weekly, Sentry Road Training every 5 weeks. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Electrical Troubleshooting MS versus Sentry Road Training: the parameters behind the verdict, then further details
ParameterElectrical Troubleshooting MSSentry Road Training
PriceFreeFree
Rating4.8 (118 ratings) — better—
Positive reviews88.2% of reviews—
Number of ratings118 — better—
Update frequencyWeekly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size22 MB58 MB
Age rating4+17+
DeveloperDavid WhiteArdian Deari

In-app purchases

None

Electrical Troubleshooting MS

No in-app purchases

None

Sentry Road Training

No in-app purchases

Questions

Is Electrical Troubleshooting MS free?
Electrical Troubleshooting MS is free to download, with no in-app purchases.
Is Sentry Road Training free?
Sentry Road Training is free to download, with no in-app purchases.
Do Electrical Troubleshooting MS or Sentry Road Training have ads?
Neither Electrical Troubleshooting MS nor Sentry Road Training shows ads.
Which is updated more often, Electrical Troubleshooting MS or Sentry Road Training?
Electrical Troubleshooting MS ships an update weekly, and Sentry Road Training every 5 weeks. Most recently, Electrical Troubleshooting MS was updated on October 16, 2026 and Sentry Road Training on October 10, 2026.

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