01
One question a round
The host reads a numeric question out loud. Every player secretly enters a guess.
The numbers party game
How close can you get?
One impossible question a round. Everyone guesses a number, nobody knows the answer, and the closest guess takes the point. Ten rounds, 2–20 players, one insufferable winner.
iOS · Android · Web · no account needed
Round 1 of 10Joe is hosting
How many keys on a full-size piano?88Bones in the adult human body?206Height of the Eiffel Tower?330 mDistance to the Moon?384,400 kmHeartbeats in a year?≈35,000,000Litres in an Olympic pool?2,500,000Days in a Martian year?687Speed of light?299,792,458 m/sMetres in a marathon?42,195Minutes in a year?525,600
How to play
Guess the number. Closest wins.
02
Closest wins
Time's up. The real answer drops. The closest guess scores +1 point.
03
Ten rounds, one winner
Most points after ten rounds takes the game. Ties trigger a tie-breaker round.
Stuck on a question? The host can add +15 seconds or end the round early once everyone's locked in.
The reveal
Everyone's wrong. Someone's less wrong.
There's no multiple choice to hide behind. When the answer lands, you find out who actually has a feel for numbers, and who was off by a planet. The closest guess takes the point. The argument lasts all night.
- Signed deltas show exactly how wrong: −3M, +45M, no hiding
- +1 point to the closest guess, every single round
- Scoreboard between rounds keeps the trash talk honest
Round 1 of 10
Correct answer
0
heartbeats a year (avg 80 bpm)
CLOSEST · +1 PT
Joe guessed 32M
#1Joe32,000,000−3M
#2Alex80,000,000+45M
#3Mary20,000,000−15M
Modes
One game. Two ways to play it.
Pick a mode and switch whenever. Scores carry over within a session.
Pass the phone
2–8One device, passed around the table. Everyone types their guess in secret and hands it on. Perfect for dinners, road trips, and long queues.
One device · zero excuses
Every phone
2–20Everyone joins on their own device. Scan the host's QR or type the 6-character room code. Same couch or three time zones apart.
Or scan the host's QR
Someone hosts. The host reads each question aloud and keeps the game moving. They don't guess, and they can hand hosting to anyone from the waiting room.
Questions
Tune the game to the table.
Defaults are sensible. Tap Start and go. Or fiddle with everything.
BiologyAstrology+ 19 moreWrite your own
21 categories in the base deck, plus a slot for yours.
The details
Made for game night.
+15 seconds of mercy
The host can buy the table time when a question lands hard, or end the round early when it doesn't.
A scoreboard with drama
Cumulative scores between rounds. “Joe's in the lead” hits different when it's read out loud.
Ties don't end games
Level on points after round ten? A sudden-death tie-breaker question settles it properly.
Start as a guest
No account required to play. Sign in with Apple, Google, or email when you want your scores to follow you.
Proof you're getting closer
Games, accuracy, levels: your gut feeling, quantified over time.
Load the deck yourself
Write custom questions for your table. Inside jokes make the best rounds.
The app
From lobby to podium.
Warm dark, one amber, numbers in mono. The whole night lives in it.
Where it goes
Wherever someone says "I bet it's…"
Guesstimate needs two things: a number nobody knows, and people who refuse to admit they don't know it. That situation finds you everywhere.
Game night
The 2,500,000-litre argument that ends three friendships and starts a group chat.
Road trips
Pass one phone around the back seat. Nobody needs signal to be confidently wrong.
Parties
A five-minute round that somehow eats the whole evening. Up to 20 players.
Classrooms
Estimation is a real skill. This is estimation that feels like heckling.
Family dinners
Grandma has never heard of an Olympic pool and guesses closest anyway.
Long distance
Everyone on their own phone, three time zones deep. Same-room energy.
Overheard at game night
It gets loud.
“I said 80 million and I stand by it.”
“New rule: Joe doesn't get to be closest three rounds in a row.”
“I don't know how many bones a body has, but I know it's not four thousand.”
“One more round. It's a five-minute round. Nobody's leaving.”
FAQ
Fair questions.
Q1Do we all need the app?
For Every-phone games, players join with the host's QR code or a link on their own device. One phone running the game is enough to get a room going. Pass-the-phone needs exactly one device for everybody.
Q2Is this a trivia game?
No. Nobody is expected to know how many heartbeats fit in a year. You're not scored on knowledge, you're scored on nerve: the closest guess wins the point, not the “right” one.
Q3How many people can play?
2–8 passing one phone around, or 2–20 with everyone on their own device. You can switch modes between games and scores carry over within the session.
Q4How long does a game take?
Ten rounds at 30 seconds a guess. Call it fifteen minutes with the arguing. You can dial it down to 5 rounds or up to 15, with 20–45 second timers.
Q5What happens if there's a tie?
A tie-breaker round: one more question, sudden death, no mercy.
Q6Can I write my own questions?
Yes. Custom questions live in your profile and mix into your games. Inside jokes make the best rounds. “How many unread emails does Dad have” has ended friendships.
Q7Do I need an account?
No. Play as a guest. Sign in with Apple, Google, or email whenever you want your scores, stats, and level to follow you between devices.
Bring it to game night.
You've already played a round. That's the whole tutorial. Round up 2–20 friends and find out who really has the best gut in the group.
Download on theApp StoreSOONGet it onGoogle PlaySOON
How close can you get?
Replay the demo round