Bubble Level
Check if a surface is flat and level with your phone.
—°
Tap start
Pitch —Roll —
About & FAQ
Turn your phone into a spirit level. Lay it flat to check a shelf or table, or hold it against a wall to check plumb. When the bubble is centred and the angle reads 0°, you're level. Use Set zero to calibrate against a surface you trust.
What do pitch and roll mean?
Pitch is the front-to-back tilt, roll is the side-to-side tilt. The big number is the overall tilt from flat.
Nothing moves — why?
Laptops and desktops usually have no tilt sensor. Open this on a phone or tablet, and on iPhone allow motion access when asked.
More phone tools: Compass · GPS Coordinates