Every quiz you’ve played told you that a guess one place off was simply wrong.
So you still don’t know whether you’re good at this.
Nearly right has never counted. It does here.
Every other quiz
Wrong
You said Australia was 5th. It is 6th.
0 points.
RankMaster
You said 5th. It’s 6th.
8 points.
Try one question, right here.
Geography
Brazil
Brazil is the blank largest country in the world by total area.
Drag the marker, or use the arrow keys.
of 10
You said · it’s 5th
UN Statistics Division, Demographic Yearbook — surface area, 2023
That’s one. There are ten waiting in the app.
Play today's ten-
Being close counts
Exact takes ten points. One place off takes eight. This is a game about judgement, not memorised lists.
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You see exactly how close
The true rank appears on the same scale as your guess and the distance is drawn out in full. No red crosses. Just the gap.
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Everyone gets the same ten
One shared daily round, the same ten questions for every player, everywhere, every day.
The guide
You knew it was about that big.
You are not bad at this. You have been marked badly. Nobody has the list memorised — that was never the interesting question.
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The scoring rule is published in full
Exact is ten points, one place off is eight, and it steps down to zero at five. The whole marking scheme is on this page and on the reveal screen every time you answer.
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Every question cites its source and its year
Rankings go stale, so the app tells you which vintage you are playing rather than pretending a number is timeless.
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Free — no ads, no subscription, nothing to buy
There is nothing to upsell, so there is nothing to interrupt you. No lives, no timers, no popup between you and the next question.
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No tracking
We never touch the advertising identifier, we run no attribution or ad SDKs, and nothing is ever sold or shared with data brokers.
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Made by 12F ApS, a registered Danish company
CVR 45362957, with a support address a human answers: [email protected].
How it works
Three steps, and no small print.
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Read the fact
A fact with the rank taken out.
Madagascar is the __ largest island in the world.
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Slide to your guess
No options to pick from. Put the marker where you think it lands.
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See the distance
The true rank appears on the same scale, and the gap between the two is drawn out. Closer scores more.
| Off by | 0 | 1 | 2 | 3 | 4 | 5+ |
|---|---|---|---|---|---|---|
| Points | 10 | 8 | 6 | 4 | 2 | 0 |
That’s the whole marking scheme. Nothing hidden.
In the app
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See exactly how close you were
The gap between your guess and the truth.
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How well do you know the world?
Slide to your guess. Closer is better.
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Five subjects to master
Geography, population, sport, economy, nature.
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Climb the daily board
Today, this week, and every category.
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Ten questions. One score.
Points for precision, not for luck.
Play your way
Three ways in.
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Daily
Ten questions. The same ten for everyone, everywhere, every day. One shot at it, then come back tomorrow.
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Endless
One question after another, for as long as you like.
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Categories
Geography, population, sport, economy and nature. Play one subject at a time.
What you are agreeing to
Five things, and they all stay true.
- Free, with no ads and nothing to buy.
- No sign-up. You are playing within seconds of opening it.
- Play anonymously and nothing leaves your phone. Scores are only sent once you choose to sign in.
- Your display name is the only thing other players ever see. Change it whenever you like.
- Delete everything, from inside the app, whenever you want.
The whole story is in the privacy policy.
Questions
The ones people actually ask.
How is my score worked out?
By how close you were, not by right or wrong. An exact answer takes all ten points, one place off takes eight, two places off takes six, and so on down to zero at five places or more. Being nearly right is worth something, which is the whole idea.
Is RankMaster free?
Yes. There is no subscription, nothing to buy inside the app, and no advertising. There is nothing to upsell, so there is nothing to interrupt you.
Are there ads?
No. There are no ads, no interstitials between questions, no lives and no timers. We never touch the advertising identifier, we run no attribution or ad-network software, and nothing is ever sold or shared with data brokers.
Do I need an account?
Not to play. You are playing within seconds of opening the app. You only need to sign in — with Apple — if you want your scores kept and your name on a leaderboard.
Why do I need an account to appear on a leaderboard?
Because a leaderboard is a list of people, and without an account there is nobody to list. When you first open RankMaster you get an anonymous session so you can play immediately, but that session belongs to one installation of the app. It cannot be signed back into, and it does not survive a new phone. So rounds played without an account are not sent to the leaderboards at all. Sign in with Apple and they are, from that point on.
Where do the facts come from?
Every question cites its source and the year it is from, shown when the answer is revealed. Rankings change, so we tell you which vintage you are playing rather than pretending a number is timeless.
What languages is it in?
Ten: English, Danish, German, Spanish, French, Italian, Dutch, Norwegian, Portuguese and Swedish. RankMaster follows your iPhone's language. Change it in the iOS Settings app under General, then Language & Region, or per-app under Settings, then RankMaster, then Language.
Which iPhones does it run on?
Any iPhone running iOS 17.6 or later. The app is 24 MB and is rated 4+.
More on the support page.
Today’s ten are live until midnight.
You can keep assuming you’re good at this. Or you can find out in about two minutes.