Comparison

Electrical Troubleshooting MS vs Ohmie

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

Ohmie

Learn electronics through engaging, game-like lessons and interactive circuit simulations. Master concepts from basic circuits to embedded systems and robotics with bite-sized daily practice. Progress is tracked on your device with no ads or accounts required.

Highlights
  • Live circuit simulations
  • Build schematics with real components
  • Interactive problem-solving lessons
  • Covers circuits, op-amps, embedded systems, and robotics
  • Gamified learning with XP and streaks
  • Progress saved locally, no account needed
  • Ad-free and tracking-free experience
Features
Currently charting
Read full description

Pass circuits. 3 minutes a day. Ohmie teaches electronics the way you'd learn a language: short, game-like lessons you actually solve, not paragraphs you skim. REAL PRACTICE. • Live circuit sims — stack battery cells, dim an LED, watch current respond to resistance • Build schematics by dragging real components into place • Decode resistor color bands, spot the broken circuit, order the steps • Miss a question? It comes back in Practice until it sticks — that's the method, not a penalty. LEARN THE FULL PATH • Circuits — charge, current, voltage, Ohm's law, series & parallel, your first LED circuit • Op-amps, components, transistors, digital logic, power • Embedded systems — GPIO, PWM, ADC, interrupts, serial protocols • Robotics — sensors, motors, PID control, build a line-following racer MOMENTUM THAT FORGIVES XP, streaks, daily quests, and a mascot named Ohmie who's on your side. Streaks are forgiving — life happens. No ads. Your progress stays on your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ohmie.io/privacy

Screenshots

Electrical Troubleshooting MS4 screens
Ohmie4 screens

Verdict

The call

The clearest difference is in-app purchases: Electrical Troubleshooting MS at none against Ohmie's 4. Electrical Troubleshooting MS also leads on ads (none vs shown) and review sentiment (88% vs 58%). Ohmie's advantage is update cadence (every 3 days vs weekly) and chart position (#134 vs unranked). On price, ratings volume 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. Ohmie sells 4 in-app purchases, starting at $7.99 per month. Electrical Troubleshooting MS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Electrical Troubleshooting MS holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 118 and 146 respectively. Written reviews point the same way: 88% of Electrical Troubleshooting MS's written reviews are positive against 58% of Ohmie's.

UpkeepUpdate frequency

Electrical Troubleshooting MS ships an update weekly, Ohmie every 3 days. The most recent releases landed on September 19, 2026 and September 30, 2026 respectively.

Scorecard8 real differences · 3 level
Electrical Troubleshooting MS versus Ohmie: the parameters behind the verdict, then further details
ParameterElectrical Troubleshooting MSOhmie
PriceFreeFree
Rating4.8 (118 ratings) — better4.6 (146 ratings)
Positive reviews88.2% of reviews — better58.3% of reviews
Number of ratings118146 — better
Update frequencyWeeklyEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
Best chart rank—#134 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.2
Further details — not scored
Size22 MB578 MB
Age rating4+4+
DeveloperDavid WhiteOHMIE LLC

Customer experience

Electrical Troubleshooting MS

All ratings118 ratings
Positive95.8%
Neutral1.7%
Negative2.5%
Written reviews17 reviews
Positive88.2%
Neutral0.0%
Negative11.8%

Ohmie

All ratings146 ratings
Positive87.7%
Neutral2.7%
Negative9.6%
Written reviews36 reviews
Positive58.3%
Neutral8.3%
Negative33.3%

In-app purchases

None

Electrical Troubleshooting MS

No in-app purchases

4 purchases

Ohmie

Subscriptions4
  • Ohmie Pro$7.991 Month
  • Ohmie Pro Yearly Saver$19.991 Year
  • Ohmie Pro7 Days trial$29.991 Year
Show 1 more
  • Ohmie Pro Annual3 Days trial$29.991 Year

Questions

Is Electrical Troubleshooting MS free?
Electrical Troubleshooting MS is free to download, with no in-app purchases.
Is Ohmie free?
Ohmie is free to download, with in-app purchases available.
Which has better reviews, Electrical Troubleshooting MS or Ohmie?
Electrical Troubleshooting MS is rated higher. Electrical Troubleshooting MS averages 4.8 out of 5 from 118 ratings, while Ohmie averages 4.6 from 146 ratings.
Do Electrical Troubleshooting MS or Ohmie have ads?
Ohmie shows ads; Electrical Troubleshooting MS does not.
Which is updated more often, Electrical Troubleshooting MS or Ohmie?
Electrical Troubleshooting MS ships an update weekly, and Ohmie every 3 days. Most recently, Electrical Troubleshooting MS was updated on September 19, 2026 and Ohmie on September 30, 2026.

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