One egg.
The whole world.
Right now, strangers across the planet are keeping a single egg warm. Press your thumb in. Feel the whole world pull the same direction — and stick around for the crack.
How Yolko works
You're never warming alone
The second your thumb lands, you've joined something the whole planet is doing this exact moment. No account, no skill — just warmth that instantly adds up to way more than you.
Watch your warmth matter
A living Earth glows wherever people are warming, and your country climbs as your neighbors pile on. Your two hands move a number the whole world is staring at.
Be there when it hatches
Nobody knows what's inside — and the world only finds out if we warm it together. It happens exactly once. You'll want to be holding it when it does.
Questions, cracked open
What is Yolko?
Yolko is a free iOS app where millions of people across the planet keep one single shared egg warm at the same time. Press your thumb on the egg to add your warmth — and when enough of the world warms it together, the egg cracks and everyone hatches it.
How do you hatch the egg?
It takes the whole planet. Everyone's warmth fills one shared bar; once it's warm enough the egg begins to crack, and the world taps together to break it open. It happens exactly once, for everyone, at the same moment.
What's inside the egg?
Nobody knows yet — and nobody finds out until the world hatches it together. That's the whole point. You'll want to be holding it when it cracks.
Is Yolko free?
Yes. Yolko is free on the App Store, with no ads and nothing to buy.
Do I need an account?
No. There's no sign-up, no email, and no password — open the app and start warming. See our Privacy Policy for the little we handle.
What do I need to play?
An iPhone or iPad. Yolko is iOS-only for now — download it free from the App Store.
The egg won't hatch without you.
Every pair of hands brings it closer. Join the planet, keep it warm, and be in the room when the world cracks it open.