No app, no account
The fastest way to lose a guest is to ask them to download something. Koestr needs no app and no account — they point their camera at your QR sign, type their name, and they're in. iPhone or Android, old phone or new, it just works.
What you get
Why hosts love it
One scan to join
A QR on the table or the big screen is all it takes.
No downloads, no logins
It runs in the browser — nothing to install, nothing to remember.
Works on every phone
iOS and Android, ancient handsets and brand-new ones.
Grandparent-proof
If they can take a photo, they can play.
More to explore
All featuresLive wall
A big-screen mosaic that fills with your guests' moments in real time — on any TV, projector or laptop.
Photo & video challenges
A gamified deck of prompts keeps everyone shooting the good stuff, with points and a friendly leaderboard.
Points & leaderboard
Points, streaks and a live leaderboard turn capturing moments into friendly competition.
Your next event deserves a wall full of moments
Set up your event in two minutes and see for yourself. It's free to start.