This page walks you through the full Boop experience: adding someone you already know, sending an anonymous Boop, what the recipient sees, what happens when it becomes mutual, and how the reveal and private chat open at the exact same moment on both sides.
Add a person by phone number. Send a Boop. They get a quiet, anonymous nudge. If they add you back and Boop you too, names appear simultaneously and a private chat opens. If they never do, nothing happens and they never know it was you.
Boop is invite-only during the v1 beta. Available as a free web app you can install on iPhone (Add to Home Screen via Safari) and Android (Chrome install prompt). Sweden-first, 18+, no ads, no trackers, no contact uploads.