vauchi
The last time you'll ever exchange contact info.
The Problem
Your address book is a graveyard of dead contacts.
A
Alex Rivera
+1 555-0147 (disconnected)
S
Sam Chen
+44 7911 ████ (old number)
M
Maya Okafor
maya@oldcompany.com
J
Jordan Petrov
@jordan.p (deleted)
sound familiar?
Contact Exchange
Meet in person. Scan. Connected.
YOU
Show QR
⟷
scanning
ALEX
Scan
📷
No phone number or account needed
✓ Exchanged
Both phones now hold each other's encrypted contact card.
YOUR PHONE
A
Alex Rivera
+1 555-8832 · alex@company.io
@alex.r
ALEX'S PHONE
Y
You
+1 555-0123 · you@email.com
@yourhandle
exchange once — stay connected
Silent Updates
When your details change, your friends' phones update
automatically. No notifications, no noise.
YOU UPDATE
editing...
Y
You
+1 555-0123
you@email.com
E2EE
RELAY
E2EE
ALEX SEES
waiting...
Y
You
+1 555-0123
you@email.com
no matter what changes
Platform Freedom
Switch social networks? Change email providers? Your contacts stay
current.
BEFORE
Y
You
@old_handle
you@oldmail.com
AFTER
Y
You
@new_handle
you@newmail.com
update once — everyone sees the change
Granular Privacy
Share work details with colleagues and home addresses with family
— all from a single identity.
Colleague sees
You
+1 555-WORK
you@company.io · @you_work
🔒 address, personal social hidden
Family sees
You
+1 555-HOME
you@personal.me · @you_personal
123 Home Street
you control the visibility
Physical Recovery
No master passwords to lose. Regain access through in-person
verification with your trusted inner circle.
lost device
👤
👤
👤
trusted circle
new device
in-person verification — no cloud, no passwords
Zero Platform
No feeds, no profiles, no social graphs.
feeds
profiles
social graph
open source
Open-source infrastructure you own entirely.
vauchi
Exchange once. Stay connected — no matter what changes.
Silent Updates
Platform Freedom
Granular Privacy
Physical Recovery
Zero Platform