Five questions a day.
Every answer cited.
Five questions a day about the world, each with the story behind the answer, where it comes from, and somewhere to go if you want more.
In English and French. Free to use, now and always. Some content stays on your device, some requires internet.
At about 3,650 m above sea level, which city is the world's highest capital?
- La Paz — correct answer
- Quito
- Kathmandu
- Bogotá
Check the source (opens in a new tab)
What we will never do
Easy to write on a landing page. So it is written into our Charter, in public, where you can hold us to it.
- Never require you to identify yourself to learn. You do not need a name, an email or an account. Everything Qpio teaches is open to you without telling us who you are, and your progress lives on this device.
- Never build a picture of you. We look at how readers as a whole are getting on, so the app can get better at teaching. We never assemble that into a person — not for us, not for anyone else.
- Never sell your data, or the right to influence you. Nobody can pay to change what you are told, or to be told about you.
- Never put knowledge behind a paywall. No “free version”. No five-questions-then-pay. Knowledge, free, permanently.
- Always show the source. Every single question, one tap away, so you can check us.
- Always say when we are unsure. A corrected question is worth more than a confident wrong one.
Install it in about ten seconds
There is no app store and nothing to download. Qpio is a website that installs itself — which is why it is instant, tiny, and updates on its own.
Open qpio.app
It works straight away in the browser. You can play the whole thing without installing anything.
Add it to your home screen
iPhone: tap Share, then Add to Home Screen.
Android: tap the menu, then Install app.
Desktop: the install icon in the address bar.
That is it
It opens like any app. Your progress is currently stored on your device, and you don't need to provide a name or email to play.