Bubble Level & Inclinometer

Bubble Level turns your phone into a precise, smooth bubble level and inclinometer. It reads the motion sensors in real time, filters out jitter without adding lag, and shows clear readings to a tenth of a degree. THREE INSTRUMENTS • Surface: a circular bubble vial for tables, appliances, floors and tripods, with left–right and front–back readings. • Edge: horizontal and vertical tube vials for shelves, picture frames and pipes. Stand the phone up to read plumb on walls, doors and posts. • Angle: an inclinometer that shows the slope of a surface with an uphill arrow, or the angle of any edge, in degrees, percent grade and rise : run. • Camera level (optional, experimental): a level line over the live camera view. ACCURATE AND STABLE • Adaptive smoothing: steady when the phone rests, responsive when it moves. • Quick or precise calibration removes the built-in offset of your sensor. Precise calibration takes two measurements 180° apart, works on any nearly flat surface and tells you how much the surface slopes. • Clear feedback when level: a color change, plus an optional vibration and sound. • Hold freezes the reading, so you can read it even when the phone is in an awkward spot. • A high sensor rate option for smooth motion on 90–120 Hz screens. MADE FOR YOUR WORK • Units: degrees, percent grade, mm/m and in/ft. • Display precision of 0.1, 0.5 or 1, an adjustable level threshold (0.1° to 2°) and adjustable smoothing. • Dark, light, AMOLED black and system themes, with dynamic color. • Keep the screen on, lock the orientation and reduce motion. • Layouts for portrait, landscape and large screens. • English, Turkish and Arabic, with full right-to-left support. SAVE AND SHARE • Save measurements with an optional note. • Search your history, share a measurement as text and undo a delete. ACCESSIBLE • Screen readers announce the reading and tell you when the device is level. PRIVATE BY DESIGN • Every measuring feature works offline. No ads and no account. • Usage statistics and crash reports go to Google Firebase to help improve the app. You can turn them off in Settings › Privacy. • The camera is used only by the optional camera level, and nothing is recorded. Tip: for the best accuracy, calibrate once on a flat surface.

Stability and performance improvements.