Circuit Design vs Ohmie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Circuit Design
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Circuit Design is a powerful and intuitive circuit simulator and schematic editor for iPhone and iPad. Build electronic circuits with drag-and-drop components, simulate voltage and current in real time, and learn electronics through interactive tools and visual analysis. Create professional circuit diagrams using resistors, capacitors, transistors, LEDs, logic gates, microcontrollers, and more. Watch live current flow animations, analyze voltage levels, and test designs instantly with the built-in simulation engine. Perfect for students, engineers, makers, Arduino enthusiasts, and anyone learning electronics. FEATURES • Modern drag-and-drop circuit editor • Real-time circuit simulation • Interactive voltage and current visualization • Huge electronic component library • Smart wire routing and snap-to-grid design • Oscilloscope and waveform preview • PCB layout preview mode • Apple Pencil support on iPad • AI-powered circuit suggestions and error detection • Educational tutorials and guided projects • Dark mode optimized interface • Export circuits as PNG, PDF, and SVG • Cloud sync and project backup Whether you're designing simple LED circuits or advanced electronic systems, Circuit Design gives you a portable electronics lab directly on your device. The App offers two subscription options: -$7.99 Monthly -$29.99 Yearly Prices may vary by location. Privacy Policy: https://privacy.vanlangapps.com Terms of Use: https://tos.vanlangapps.com Should you choose to upgrade to a Pro subscription, payment will be charged to your iTunes account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You may cancel automatic renewal and manage your subscription by selecting Manage App Subscriptions in your iTunes Account settings and selecting the subscription you want to modify. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a Pro subscription, where applicable.
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.
- 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
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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
Verdict
The clearest difference is ads: Circuit Design at none against Ohmie's shown. Circuit Design also leads on iOS requirement (17.0 vs 26.2). Ohmie's advantage is update cadence (every 3 days vs every 2 months) and chart position (#80 vs unranked). On price, 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
Both are free to download. Circuit Design sells 3 in-app purchases, starting at $7.99 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.
Circuit Design ships an update every 2 months, Ohmie every 3 days. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.
| Parameter | Circuit Design | Ohmie |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (209 ratings) — better |
| Positive reviews | — | 57.4% of reviews |
| Number of ratings | — | 209 — better |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Best chart rank | — | #80 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 5 MB | 740 MB |
| Age rating | 4+ | 4+ |
| Developer | Tu Anh Do | OHMIE LLC |
In-app purchases
Circuit Design
- Circuit Design Premium Monthly$7.991 Month
- Circuit Design Premium Yearly$29.991 Year
- Circuit Design Premium Lifetime$39.99
Ohmie
- Ohmie Pro$7.991 Month
- Ohmie Pro Yearly Saver$19.991 Year
- Ohmie Pro7 Days trial$29.991 Year
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- Ohmie Pro Annual3 Days trial$29.991 Year
Questions
Is Circuit Design free?
Is Ohmie free?
Do Circuit Design or Ohmie have ads?
Which is updated more often, Circuit Design or Ohmie?
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