Five questions a day.
Every answer cited.

A daily habit that leaves you knowing something you did not know this morning — and shows you exactly where it came from.

Start playing — it's free How to install

In English and French. Free to use, now and always. Some content stays on your device, some requires internet.

Geography

At about 3,650 m above sea level, which city is the world's highest capital?

  • La Paz — correct answer
  • Quito
  • Kathmandu
  • Bogotá
Why it matters — The air holds roughly a third less oxygen than at sea level — visiting footballers have complained about it for decades.
Check the source (opens in a new tab)
A genuine question from the live app — not a mock-up.

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.
  • Never run ads. Nobody buys their way into what you are told. When you want to go further you may find links to relevant books, museums or resources — and no fee has ever placed one of them or changed its order.
  • 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.

1

Open qpio.app

It works straight away in the browser. You can play the whole thing without installing anything.

2

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.

3

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.

Quaero, ergo Sapio

I seek, therefore I become wise.

Start with today's five questions