Finally understand how everyday things work.
Why the breaker trips, how a toilet refills, why a steel ship floats… 5-minute interactive lessons in electricity, plumbing, physics and engineering, for curious minds of every age.
Start for freeNo card needed. The first lesson of every course is free.
Questions you've probably asked yourself
Every question has its lesson: a short explanation, then you try it yourself and check you've got it.
For every curious mind
No prerequisites and no jargon: everyone starts from what they see every day.
Children and teens
Understand what happens at home, at their own pace, by playing rather than memorising.
Students and apprentices
See the physics and math behind the exercises, with diagrams you can touch.
Adults
Finally know how your home works: the breaker, the boiler, the plumbing.
Families
Learn together: one question a day makes a great conversation at dinner.
How it works
No lectures: you learn by tapping, dragging and testing.
Pick a topic
Electricity, plumbing, physics, math… Start with whatever makes you curious.
Play for 5 minutes
Each lesson mixes a short explanation, diagrams and mini-games.
Make it stick
Practice rounds bring back the essentials, and your progress is saved.
7 topics, 129 lessons
All content is available in English and French.
Pricing
Start for free. Go Premium only if you want to unlock everything.
Free
- The first lesson of every course
- All 7 topics to explore
- No card needed
Premium yearly
- All 129 lessons and every practice round
- New courses as soon as they come out
- No ads
Premium monthly
- Everything in Premium
- No commitment
Prices in Swiss francs. Cancel any time in two clicks: you keep access until the end of the period you paid for. Secure payment by Stripe.
Frequently asked questions
Do I need any background knowledge?
No. Lessons start from what you see every day and move step by step. You don't need any formulas to begin.
Is it suitable for children?
Yes, for curious children who can read on their own; younger ones can learn alongside an adult. There are no ads and no chat with strangers. A parent takes care of the subscription.
Which devices does it work on?
In the browser on your phone, tablet or computer. You can also add it to your home screen like an app.
How do I cancel my subscription?
In the app, tap "Premium" then "Manage my subscription". Cancellation takes effect at the end of the period you paid for, at no cost.
What about my data?
We only ask for an email for the subscription. No ads, no selling of data. Details are in the privacy policy.
Do these lessons replace a professional?
No. They help you understand how things work. For electrical or plumbing work, follow the regulations and call a professional when needed.