The back-to-back party game

Don't do it your way. Do it their way.

Stand back to back with a friend. You both get the same silly task. Act it out the way you think they will, and your phones score how in sync you really are.

2 or more playersOne person buys, everyone playsNo talking allowed
Illustration of a woman in pink and a man in blue standing back to back, each looking at a glowing phone ✦✦✦✦
How it works

Coordination without communication

No peeking, no talking. Just you, your partner, and a growing suspicion that you don't know each other at all.

Two friends standing back to back in a living room, holding their phones
STEP 1

Stand back to back

Pair up and turn around. Each of you holds your own phone. Everyone else gets the best seat in the house.

THE TASKHail a taxi in New York
THE TASKHail a taxi in New York
STEP 2

Same task, two guesses

You both see the same task. Don't do it your way. Guess how your partner will act it out, and do that.

0%
STEP 3

Your phones score the sync

The motion sensors compare how you both moved. The more alike, the higher the score. Then the room roasts you.

Made for game night

Half the fun is watching

One of you milks a cow. The other one does… something. Everyone on the couch sees both at once, and nobody forgets it.

"Twenty-three percent. So one of you milked a cow, and the other one, I honestly don't know what that was."
Your host, the announcer, after a very bad round
23%in syncOne cow. One… chicken?
91%in syncOkay, you two are basically twins.
More than one trick

A whole night in your pocket

🎙️

A host who roasts you

The announcer runs the night like a friend at game night. Hypes the twins, roasts the flops, and has opinions about your chemistry.

⚡

Lightning rounds

Quick sync challenges between stages, no acting required.

Shake CountLeft or RightInner ClockSame BeatStop TogetherHow Strong
🎲

Double or nothing

Every so often you can bet on your partner before the reveal. Each of you decides alone. Trust issues, revealed.

🌀

Special rounds

Slow motion, fast forward, mirror, wrong hand, freeze, opposites. The rules change just when you think you've got it.

💞

Pair chemistry

Your average and best scores as a pair, tracked over time. Finally, hard data on who your real twin is.

🎬

Replays worth sharing

A spectator films the round and gets a clip with both motion lines, the task and the score. Made to be posted.

Pricing

Buy once. Everyone in the room plays.

Only the host needs to buy. Friends join by scanning the host's code. No subscription.

The game
🎭

Twinstinct

  • 360 absurd tasks, from easy to "what does that even mean"
  • Announcer, lightning rounds and special rounds
  • Pair chemistry and tonight's awards
$2.99one time
🎄

Christmas pack

30 festive tasks with their own narration.

"Squeeze down a chimney after too many cookies"
$0.99add-on
💘

Valentine's pack

30 tasks made for couples. Or for finding out you shouldn't be one.

"Feed your date one very, very long spaghetti noodle"
$0.99add-on

All purchases happen inside the app through the App Store or Google Play.

Questions

Good to know

How many people can play?

Two or more. Each player uses their own phone. With a bigger group, pairs take turns while everyone else watches, guesses the score and heckles.

Does everyone need to buy it?

No. One person hosts and buys the game. Everyone else joins the room by scanning the host's code.

How do the phones know if we're in sync?

While you act out the task, each phone records its own motion sensors. Twinstinct compares the shape and rhythm of both movements and turns it into a sync score from 0 to 100.

Can we talk or peek?

Nope. That's the whole game. You have to guess how your partner thinks, without any help.

Is it only for couples?

Not at all. Friends, siblings, roommates, coworkers. It's funniest with people who are sure they know each other.

When can I get it?

Twinstinct is coming soon to iPhone and Android. Check back here for the store links. Need help? Visit Support.

Twinstinct app icon

How well do you really know each other?

Grab someone you think you know. Find out on the next game night.