Global reach
Call across borders
Crystal-clear one-to-one calls over the internet, wherever your people are.
Private calling, reimagined
Your number is private. Your voice goes global.
Call friends anywhere using a secure Private ID—not your personal phone number. Clear conversations, fewer barriers.
No phone number shared Install on any device
Why Onyx
A better way to be reachable.
Onyx separates your calling identity from your personal phone number, so connecting feels effortless without giving up control.
Private by design
A number that reveals nothing
Connect through a unique 10-character Private ID instead of exposing your phone number.
Built for trust
Conversations stay yours
Secure account protection, private contacts and controlled call history in one place.
How it works
Three steps. One private connection.
- 01
Create your account
Choose your country and receive a unique Private ID automatically.
- 02
Share your ID
Send your Private ID to the people you trust—never your personal number.
- 03
Dial and connect
Enter their ID, tap call and talk from any supported device.
Ready when you are
Your Private ID is waiting.
Create a free account and make your first connection.