Welcome to

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Hint, hint… it’s not your average guessing game.

Hmm… I Know!!™ is a chat game between friends, powered by the quest for knowledge.

Let the guessing—and learning—begin!

 
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Let’s play!

Invite friends or join a game, choose a category, and play until you guess the mystery item. You can check your answers (or your fellow players!) with the built-in Wikipedia tab.

Earn points for getting it right, try out a ton of awesome avatars, and control the time and question limits with premium features.

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Rules of the game

  • 1. Create your profile.

    Choose an avatar & find your friends.

  • 2. Start playing!

    Choose a category, invite friends, or join a game.

  • 3. Begin guessing!

    Ask “yes” or “no” questions until you find the answer! (you can ask for hints, too.)

  • 4. Learn & have fun!

    Check your answers and do a little learning at the end of every game. Compare the weirdest coolest facts you can find!

  • 5. Be rewarded.

    Earn points as you play and buy some superpowers.

See more rules >>

Play for FREE or enjoy Premium Perks

  • Free

    Play 1:1

    5 games per month

    Totally free, includes some paid content

  • Premium

    Up to 20 players total

    Unlimited play

    AD-free

    One-time payment of $2.99

About us

Hmm… I Know!!™ founder Simon has always enjoyed a good guessing game. He played them with his own dad, and when he had a daughter, they started playing “20 Questions” on long car rides. While Simon had always prided himself on his deductive powers, his daughter quickly put him in his place. “I was amazed by how much she knew!” he says with a smile. “As a parent, there’s just no better feeling.”

Simon started to think that his favorite game deserved its own app. When another friend, Chris, approached him with the same idea, they joined forces to create Hmm… I Know!!™ They added avatars, chat capability, and a point system. And they built in a way to check answers and facts online via Wikipedia - without having to leave the app and search the web on their own. “If you love to learn, you'll love this game," says Simon. "And kids are constantly learning."

“Kids today are so informed, so empowered. They need play that can keep up.”

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— Simon, Hmm… I Know!!™ founder