Precision Bubble Level vs SD Inclinometer

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.

Need a fast, accurate digital inclinometer or bubble level? SD Inclinometer turns your iPhone into a precision tilt meter—no extra tools required. Measure pitch, roll, and slope in real time with a large, easy-to-read display. Perfect for construction, carpentry, roof pitch, HVAC, solar panel alignment, shelves, decks, and DIY projects. WHY CHOOSE SD INCLINOMETER • Live angle readout in degrees (pitch & roll) • Slope as percentage (rise/run × 100)—ideal for roofs and ramps • Visual bubble level for quick horizontal alignment • Set any surface as zero reference, or reset to gravity • Audible chime when you hit level or your target zone • Adjustable alert volume (in-app or volume buttons) • Sensor speed & smoothing for stable or fast readings • Works in portrait and landscape PRO FEATURES (optional one-time unlock) • Camera inclinometer—aim, measure, capture & share • 2-point calibration for better accuracy • Gyroscope sensor fusion for steadier readings • Target slope mode with alerts • Measurement log & sharing • Extra alert tones • Ad-free experience Try advanced tools briefly with a rewarded ad, or unlock Pro for life with a single purchase. Built for the field: open the app, place your phone, read the angle instantly. Note: Uses the device motion sensors. For best results, calibrate on a known flat surface and avoid strong vibration while measuring.