Ultrasonic Proximity Trust
This app needs microphone access to detect ultrasonic Gibber-Link signals (18-21 kHz).
Your audio stays on your device — nothing is recorded or sent anywhere.
v0.5.0 · ggwave Ultrasonic · DH-SAS · WebAuthn
Read these numbers aloud. The other person should see the same codes.
⚠ If codes differ, a third party may be intercepting. Abort immediately.
Verifying you're a real human, present at this moment.
Position face within frame
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