Comparison

Circuit Simulator vs Ohmie

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

Head to head
About

Circuit Simulator

Design and simulate electronic and digital circuits in real-time. Visualize voltage and current flow, and analyze circuit behavior with tools like oscilloscopes and multimeters. Offers a user-friendly experience for circuit design and digital electronic analysis.

Highlights
  • Real-time electronic circuit simulation
  • Digital circuit simulation
  • Voltage and current analysis
  • Multichannel oscilloscope
  • Multimeter tools
  • Circuit design and tuning
Features
Read full description

VoltSim is a realtime electronic circuit simulator like Multisim, SPICE, LTspice, Altium or Proto for circuit design with a better user experience. VoltSim is a complete circuit app in which you can design circuits with various components and simulate an electric or digital circuit. During simulation you can check voltage, current and many other variables. Check signals on multichannel oscilloscope or multimeter and tune your circuit in real time! You can also use VoltSim as logic circuit simulator and perform digital electronic analysis! This app will help you visualize how the voltage varies across the circuit and how current flows through it. T&C: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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
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. Lessons are read aloud, so your eyes stay on the circuit. 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 • Electronics: charge, current, voltage, Ohm's law, series and parallel, capacitors, power, analog, then transistors, logic gates and an 8-bit computer you can run, pause and step through • Embedded systems: GPIO, timers, PWM, ADC, interrupts, serial protocols, build a device • Robotics: sensors, motors, PID control, build a line-following racer • PCB design: schematics, layout, routing, production • Programming: Python, and C++ for Arduino EXPLORE OHMIE WORLD Walk into Copper Town, take on the trainers in the forest, wire the town's circuit on a breadboard, and face other learners in the Arena. MOMENTUM THAT FORGIVES XP, streaks, daily quests, 30 badges to earn, skins to unlock, leaderboards, and a mascot named Ohmie who reacts to every answer and is on your side. Streaks are forgiving. Life happens. Stuck? Ask Ohmie and get a hint in plain words. No ads. Learn in English, Spanish or German. Sign in to keep your progress across devices. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ohmie.io/privacy

Screenshots

Circuit Simulator4 screens
Ohmie4 screens

Verdict

The call

The clearest difference is ads: Circuit Simulator at none against Ohmie's shown. Circuit Simulator also leads on review sentiment (77% vs 56%) and rating (4.7 vs 4.5). Ohmie's advantage is update cadence (every 3 days vs every 6 weeks) and chart position (#79 vs unranked). On price, ratings volume, in-app purchases and monetization model 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. Circuit Simulator sells 8 in-app purchases, starting at $0.99 per month and Ohmie sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Circuit Simulator holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 87 and 247 respectively. Written reviews point the same way: 77% of Circuit Simulator's written reviews are positive against 56% of Ohmie's.

UpkeepUpdate frequency

Circuit Simulator ships an update every 6 weeks, Ohmie every 3 days. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 5 level
Circuit Simulator versus Ohmie: the parameters behind the verdict, then further details
ParameterCircuit SimulatorOhmie
PriceFreeFree
Rating4.7 (87 ratings) — better4.5 (247 ratings)
Positive reviews76.9% of reviews — better56.0% of reviews
Number of ratings87247 — better
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank—#79 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.3 — better26.2
Further details — not scored
Size103 MB731 MB
Age rating4+4+
DeveloperSindhu GopiOHMIE LLC

Customer experience

Circuit Simulator

All ratings87 ratings
Positive92.0%
Neutral3.4%
Negative4.6%
Written reviews13 reviews
Positive76.9%
Neutral7.7%
Negative15.4%

Ohmie

All ratings247 ratings
Positive86.2%
Neutral3.6%
Negative10.1%
Written reviews50 reviews
Positive56.0%
Neutral14.0%
Negative30.0%

In-app purchases

8 purchases

Circuit Simulator

Subscriptions1
  • Extensions Subscription$0.991 Month
One-time7
  • Sensors Extension$0.99
  • Custom Chips Extension$1.99
  • Instruments extension$2.99
Show 4 more
  • Analog Extension$3.99
  • Misc Extension$3.99
  • Digital Extension$3.99
  • Extension Pack$12.99
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 Circuit Simulator free?
Circuit Simulator is free to download, with in-app purchases available.
Is Ohmie free?
Ohmie is free to download, with in-app purchases available.
Which has better reviews, Circuit Simulator or Ohmie?
Circuit Simulator is rated higher. Circuit Simulator averages 4.7 out of 5 from 87 ratings, while Ohmie averages 4.5 from 247 ratings.
Do Circuit Simulator or Ohmie have ads?
Ohmie shows ads; Circuit Simulator does not.
Which is updated more often, Circuit Simulator or Ohmie?
Circuit Simulator ships an update every 6 weeks, and Ohmie every 3 days. Most recently, Circuit Simulator was updated on October 16, 2026 and Ohmie on October 18, 2026.

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