★★★★★
Easy to understand and fun to learn!
I’m a student learning about electronics and electrical engineering. I like how fun and easy this app makes learning.
bird_coffin
4.5 ★ on the App Store · 172 ratings
Learn real electronics,
3 minutes a day.
Short lessons you solve by hand, with circuits that actually respond.
7 days free, then $29.99/yr. Or $7.99/mo. iPhone and iPad.
4.5 ★
App Store rating, 172 ratings
610+
bite-size lessons
5
subjects, no prerequisites
New in 1.5.8
- 30 badges to earn. Your Achievements live in the Ohmie tab, and every unlock gets a card you can share.
- Ohmie dresses up for Halloween. From October 17 to November 1 he wears his vampire cape, with new moves.
- Ohmie reacts while you learn. He cheers your right answers and celebrates when you finish a lesson.
- Fresh looks, and dark mode fixed. All ten skins are redrawn; code, diagrams and lab warnings read properly at night.
How Ohmie works
1. Pick today's lesson
A short lesson picks up right where you left off.
2. Fix the circuit
Answer real questions and fix live circuits by hand.
3. Keep the streak
Earn XP, level up, and come back tomorrow.
What Ohmie gives you
Hands-on from lesson one
You don't watch electronics. You solve it.
Tap the break in the loop. Fix the fault. Watch the lamp light up — on a circuit that actually responds.
Stuck? Every question has an explanation built in, plus a nudge if you need one — and signed-in subscribers can ask Ohmie follow-up questions right there.
The Explore tab
Search any topic. Race this week's leaderboard.
Explore holds your streak, a search across every lesson, topic chips from Electricity Basics to Transistors, and this week's top-50 leaderboard. Miss a question and it goes into a review queue until you get it right.
New: Ohmie World
Walk into Copper Town. Light your first LED.
Ohmie World is a small town inside the app: wire real circuits on the workbench, then take on the Copper Trail's three trainers.
- Quiz-battle Watt, the practice bot — first to five wins.
- Sign in and challenge another inventor live, 20 seconds a question.
Built to bring you back
Streaks and levels that make 3 minutes stick.
Every lesson banks XP and keeps your streak alive.
- Level up from Spark to Circuit Apprentice, Conductor and Circuit Master.
- A Daily Charge every day — up to five questions, +15 XP.
- Protect your streak with a streak freeze.
It starts at "what is electricity?" and ends at robot navigation.
01
Electronics
238 lessons
Voltage, current, capacitors, op-amps, then transistors, logic gates and a computer you build — from your first spark to an 8-bit CPU.
One track now, in eleven chapters: analog signals on the scope, the transistor's 1947 breakthrough, the Logic Lab, and Inside the 8-Bit Computer, a whole computer running on your screen.
02
Embedded Systems
103 lessons
Where code meets copper: pins, analog reads, interrupts, and the sensors that feel the world.
Rewritten from top to bottom in 1.5.7, with fresh narration.
03
Programming
119 lessons, one track
One track with a Python / C++ switch: Python from zero (67 lessons), or Arduino C++ from your first blink to your own sensor lamp (52 lessons).
04
PCB Design
48 lessons
From breadboard to board: lay out real PCBs in OhmieCAD, the built-in board editor.
05
Robotics
105 lessons
IMUs, sensor fusion, and SLAM — how a robot figures out where it is.
No prerequisites.
Start at 01 — 7 days free →
What people say on the App Store
★★★★★
Amazing
I wasn’t expecting much but wow! So easy to learn and understand, it is helping me a lot at work and my hobbies.
HarryChoppa★★★★★
My first interactions
I was not expecting a lot but holy moly. This app will sure teach you what you need to know. […] I was thinking not paying for the subscription but it is totally worthy.
AsiusG31127 days free. Then $29.99 a year.
7 days free, then $29.99/yr. Or $7.99/mo. Cancel anytime in the App Store.
Questions, answered
Do I need any hardware or a breadboard?
No. Every circuit is simulated and playable right in the app — though builds are real enough to copy onto your desk.
Is it good for total beginners?
Yes. Ohmie starts at "What is electricity?" and builds up one short lesson at a time.
How far does it actually go?
Five subjects — Electronics, Embedded Systems, Programming, PCB Design and Robotics — take you from Ohm's law to what's happening inside a transistor, through a computer you build, then on to IMUs, sensor fusion and SLAM. It's the same short, hands-on lesson rhythm the whole way; the ideas just get bigger.
What if I get stuck on a question?
Ask Ohmie. Every question has a built-in explanation, plus a nudge if you need one, and signed-in subscribers can ask Ohmie follow-up questions right there on the question.
Which languages does Ohmie speak?
English, Spanish, Czech and Brazilian Portuguese. Lesson narration stays English for now.
Which devices does it run on?
iPhone and iPad. There's no Android or web version.
Is there a free version?
No — Ohmie is a paid app. Pick Yearly and the first 7 days are free; cancel before day 7 and you pay nothing. Monthly is $7.99/mo. There's no ad-supported tier.
Does it work offline?
Once you're in, lessons, circuits, hints and narration all work offline. Signing up, the leaderboard, progress sync and Ask Ohmie need a connection.
Is it OK for kids?
Ohmie is rated 4+ on the App Store and written for adult beginners. Teens do fine with it.
Can I cancel anytime?
Yes. Yearly starts with a 7-day free trial — cancel before it ends and nothing is charged. Either plan can be cancelled any time in the App Store, and refunds are handled by Apple at reportaproblem.apple.com.
Your first circuit is 3 minutes away.
7 days free on Yearly. Cancel anytime in the App Store.
7 days free, then $29.99/yr. Or $7.99/mo. iPhone and iPad.
