Signtone - HEAR IT. SIGN IT

Signtone is the fastest way to check in to events. No QR codes. No NFC tags. No typing your name into a form. Just walk in, hear the sound, and tap to register. HOW IT WORKS Event organizers play a short audio signal — a Signtone — through any speaker at their venue. Your phone listens for it. When detected, you receive a notification with the event details and can register with a single tap. Works with conference PA systems, laptop speakers, Bluetooth speakers, and even broadcast radio. ATTENDEES - Walk into a venue and auto-detect the event - Register with one tap — your profile is shared instantly - Choose between a public or a professional (LinkedIn) profile - Access event resources, links, and handouts right on your phone - View your registration history anytime EVENT ORGANIZERS - Create events and generate Signtone audio from the dashboard - Upload banners and resource links for attendees - Track registrations in real time - Export attendee lists as CSV - Run sweepstakes and prize draws - Works for conferences, meetups, trade shows, and retail events TWO AUDIO MODES Universal: Ultrasonic signal (16.5-17.5 kHz) — inaudible to most people. Perfect for conferences where silence matters. Broadcast: Audible signal (1.2-3.8 kHz) — works over radio, PA systems, and noisy environments. PRIVACY FIRST - Audio is processed on-device to detect Signtones only - We never record conversations or background audio - You control which profile to share at each event - Microphone access can be revoked anytime Signtone — Hear it. Sign it.