One question, one number, not one drop too many.

The estimation quiz you play together around a single iPhone. Nobody knows the answer: you just have to be the closest.

Download on the App Store

How to play

Four steps, one vase each, and off you go.

1

Add the players

2 to 20 players, on a single iPhone. A short animation recaps the rules before each game, and the app remembers the names for next time.

2

Everyone guesses in secret

A question comes up, for example “How many steps are there in the Eiffel Tower’s staircase, up to the top?” The unit is set: you just type a number. The phone goes from hand to hand, and nobody sees the others’ answers.

3

The answer is revealed

With a fun fact to go with it. The closest player takes nothing. Everyone else gets drops in their vase, from 1 to 10: the further off, the more drops.

4

Don’t let it overflow

A vase holds 25 drops, not one more. On the 26th, it overflows and its owner is out. The game goes on until only two players are left.

0
Empty vasestart of the game
12
Half full12 drops
23
Close call23 drops
27
Overflowing!out of the game

Each player has a vase, filled by the drops from every round.

Counting the drops

What counts isn’t how far off you are, but how far off you are compared with everyone else.

0dropsfor the closest player
2dropsfor the table’s median gap
10dropsat most, however far off

Sample round

How tall is the Statue of Liberty, from her feet to the torch?

Right answer: 46 meters

PlayerAnswerGapDrops
Emma5040closest
Jack406+2
Sam3016+6
Olivia10054+1018, capped
  1. The worst gap (54) is set aside, so that one wild answer can’t skew the scale.
  2. The median of the other gaps (4, 6, 16) sets the scale for the round: 6 meters.
  3. Every 6 meters off costs 2 drops, rounded up, with a maximum of 10. The closest player takes nothing.

The result: the scoring adjusts itself to every question. Being 200 kilometers off on the distance from Paris to Tokyo is almost a bullseye; being 2 meters off on the height of a painting, much less so.

What’s in the box

638questions to estimate
12different themes
2 to 20players per game
0internet needed

Frequently asked questions

The answer may already be here.

How many players can play?

2 to 20 players. From 3 players up, you play the full game: drops are worked out by comparing the answers around the table. With only two, there’s nothing to compare, so the game starts straight away with the flower duel, just like the end of a regular game.

More players, or playing with kids? Form teams: a team counts as one player, and nothing stops you from whispering among yourselves.

Do I need an internet connection?

No. All the questions are built into the app. It works on a plane, in the car, at the campsite — anywhere.

Do I need to be good at trivia?

Not really. The questions are chosen so that you have a hunch without knowing the answer: nobody knows by heart how many steps the Eiffel Tower has.

And you’re not playing against the right answer, but against the others: you just need to be a little less far off than they are.

Why did I get so many drops when I wasn’t that far off?

Because everyone else was even closer! Drops don’t depend on your raw gap, but on your gap compared with the table’s median gap (leaving out the worst answer). A gap equal to that median costs 2 drops, twice as much costs 4, and so on, up to 10.

So on a question where the whole table is close, a small mistake costs a lot. The detailed example is in Counting the drops.

Two players are exactly as far off: what happens?

They get the same number of drops. If they’re both the closest, neither of them takes anything. In the duel, a dead heat gives nobody a flower.

Can I answer with decimals?

No, you only type digits. All the right answers are whole numbers, rounded to the nearest unit, and the unit is already set by the question (meters, years, dollars…): no conversion needed. For a date, just type the year.

Why metric units?

The English edition is written for players all over the world, so measurements are metric: meters, kilometers, kilograms, degrees Celsius. Some fun facts give the imperial equivalent.

Can I play in French?

Yes. The language menu at the top right of the home screen offers Français and English. The interface and the questions switch together: in French, the game is called La goutte d’eau and has its own set of questions. The language is chosen between games. See the French help page.

Will I get the same questions again?

Not for a long time. A question you’ve already had won’t come back on the same iPhone for six months, and each round switches theme to keep things varied.

If you play a lot and a theme has nothing new left, the app brings back the question from that theme that was asked longest ago.

Can I stop a game in progress?

Yes. The ••• menu at the top right offers End the game: the game stops and the current ranking is shown. The round being answered doesn’t count: only rounds already revealed do.

The same menu also lets you Skip this question while answers are being typed: the right answer is shown and nobody gets any drops.

I spotted a mistake in an answer

Write to us, copying the question exactly as it appears, and tell us what’s wrong. Every answer comes from a source: we’ll check it, and the fix will come with the next update.

Are my answers sent anywhere?

No. Nothing leaves your iPhone: not the players’ names, not the answers, not the scores. See the privacy policy.

Need a hand?

A question, a bug, an idea for a new question: write to us.

victor@deeday.co

To report a bug, please include your iPhone model and iOS version.