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How the light show works: flashlight sync by ultrasound, with no app

How the light show works: flashlight sync by ultrasound, with no app

The mechanic is as simple as possible. A viewer scans a QR code, the show page opens in the browser, and the phone becomes a pixel of the shared picture. No app and no wristbands.

  • Runs in the browser, on any smartphone
  • Syncs over ultrasound, with no load on the mobile network
  • Works even on weak or blocked internet
  • Maps the picture by row and seat or by geolocation

No personal data is collected during the show: everything is processed locally, and once the tab is closed there is no access to the user.

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