ISI
Your people, one invitation away

Instant Social
Interaction.

A simple place to message, call and share with the people you know.

Invite-only · iPhone and iPad

Invite-only, by design. Join with a code or QR from someone already in ISI. No email address or phone number needed — just a username and a password.

ISI’s emerald and gold radar-and-leaf icon

ISI · Instant Social Interaction