Bubble Level app icon

Bubble Level

A spirit level on your wrist. Lay the watch flat — green means level.

Tools Utility Sensor
Coming soon Privacy policy

Your watch already has an accelerometer; this turns it into a precise two-axis spirit level. Lay it flat on a shelf, a frame, a table — the bubble drifts to show the tilt and snaps green the instant you’re level, with a gentle haptic tick to confirm.

A live pitch/roll readout shows the exact angle. Tap to zero against any surface (tap again to reset to true level). No ads, no accounts, and it works entirely offline — the accelerometer is read on-device and nothing ever leaves your watch.

Features