Live demo · 01
Be the sensor.
Hold this phone flat against your forehead like a headband. Tilt your head. The target box will turn green when you hold within ±15° of the Epley step 2 pose — exactly how VertiBand verifies each stage in real time.
Awaiting permission
Pitch
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Roll
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Yaw
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On iPhone you'll see a one-time permission prompt. Android granted by default. Works best in portrait held flat to your forehead.