⌛ Timer Level

0.0° , 0.0°

Tap Start 3s Timer, set the phone in place. We’ll freeze the reading and buzz if both axes are within ±0.2°.

Tap Start Sensors to begin.

Enable Motion Access

Needed to read device tilt. iOS requires a tap.

If it still doesn’t work: Settings → Safari/Chrome → Motion & Orientation Access → Allow