Precision Bubble Level vs Level

When your hands are full, your wrist has the answer. PrecisionLevel is a digital spirit level for your iPhone and Apple Watch. Place either device on any surface — within a second, you know whether it's level. No squinting at a tiny bubble in a plastic tube. YOUR WRIST, YOUR LEVEL Hanging a shelf while holding it in place? Leveling a washing machine in a tight space? Glance at your watch instead of reaching for your phone. PrecisionLevel on Apple Watch is a standalone app — no phone required. SUB-DEGREE ACCURACY Hardware accelerometer and gyroscope with Butterworth filtering deliver smooth, precise readings. One-tap calibration compensates for your specific device's sensor quirks. SEE IT AT A GLANCE A responsive liquid bubble shows tilt in every direction. Directional arrows tell you which side is high. Color-coded feedback — green when level, amber when close, red when off. You never have to read a number unless you want to. BUILT FOR THE JOB • Multiple units: degrees, percent grade, mm/m, in/ft • Hold & lock — freeze the reading, then move your device • Dark & light themes — OLED-friendly dark mode or high-contrast light • Configurable decimal precision • Minimal battery usage Free. No ads. No in-app purchases. Ever.

Aluminium Level turns your iPhone into a fast, accurate spirit level for everyday leveling, hanging, and DIY jobs. A clean aluminium-and-lime interface, built for landscape, gives you a clear read at a glance. THREE WAYS TO MEASURE - Bullseye (surface) level: a bubble that drifts off-centre when a surface tilts in any direction, turning green as you reach true level. - Tube / vial level: a classic single-axis vial for quick edge checks. - Edge level: a focused bar for plumbing verticals and leveling horizontals. LIVE READOUTS - Real-time pitch and roll angles, updated as you move. - Switch units between degrees, percent slope, and inches-per-foot. - A satisfying chime and haptic tap confirm the moment you hit level. BUILT FOR REAL WORK - One-tap calibration zeroes out any reference surface, so a slightly uneven phone never throws off your reading. - Hold/freeze captures a reading in awkward spots where you can't see the screen. - Reset returns to factory zero anytime. - Landscape, full-screen layout with large, readable values. No accounts, no clutter — open it and measure. Whether you're hanging a picture, leveling a shelf, checking a table, setting tile, or framing, Aluminium Level keeps it simple and precise. REMOVE ADS Prefer an ad-free experience? A one-time Remove Ads purchase clears all ads forever and supports independent development. Every measuring tool stays free.