Live reactions
Koestr isn't a one-way feed. Guests heart the captures they love, and those counts climb live — on their phones and on the big-screen wall — turning quiet scrolling into a shared, buzzing moment the whole room feels.
What you get
Why hosts love it
Tap to heart
A single tap shows the love, from any phone.
Live counts everywhere
Totals rise in real time on the wall and in the gallery.
Surfaces the best
Popular moments float up so nothing great gets lost.
Contagious energy
Reactions make the room lean in and play more.
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.