ZenLevel vs SD Inclinometer

ZenLevel turns your iPhone into a precision inclinometer with the calm, deliberate feel of a real machinist's instrument. Built for builders, DIYers, photographers, woodworkers, and anyone who needs something perfectly level, perfectly plumb, or at exactly the right slope. FOUR MEASUREMENT MODES SURFACE — Lay your iPhone flat on a countertop, shelf, or picture frame. The two-axis bubble instrument shows the exact inclination, with digits that roll smoothly between values like a laboratory dial. When you find true level, the interface shifts to a calm, luminous green. PLUMB — Press the back of your iPhone against a vertical surface to check whether it is truly vertical. A tall bubble tube rises and falls with the wall's deviation, and a "check position" warning tells you when the phone is too flat for an accurate reading. CALIBRATE — Every sensor drifts. Place your phone on a surface you trust, wait for the stability meter, and tap ZERO OUT. Offsets persist across launches, and Reset calibration restores factory defaults at any time. HISTORY — Save any measurement to a log grouped by day. Tap an entry to see its details, edit its note, or delete it. HOLD THE READING Measuring under a shelf or behind a cabinet? Tap HOLD to freeze the reading, then take your iPhone out and read it — or save it — at your leisure. Tap RELEASE to go live again. SLOPE UNITS Show every reading in degrees, percent grade, millimetres per metre, or inches per foot. Rise-over-run units make drains, ramps, patios, decks, and gutters easy: a quarter inch per foot is simply 0.25 in/ft. Saved measurements follow your chosen unit and keep the original angle alongside. LANDSCAPE PRECISION MODE Rotate your iPhone to landscape and SURFACE becomes a long horizontal bubble vial for checking frames, shelf edges, and countertops along their length. A tipping indicator helps you keep the phone upright to avoid projection errors. DESIGN THAT FEELS LIKE A REAL TOOL • Deep blacks, subtle glass panels, and a signature zen-green accent • Rolling digit transitions on every live readout • Haptic feedback on level, save, calibration, and tab changes • Rotation-lock detection that guides you when iOS is locked to portrait • Decorative animations pause when Reduce Motion is on PRIVACY FIRST, BY DESIGN • No accounts, no login, no cloud sync • No tracking, no analytics, no advertising • No network requests of any kind • Measurements and calibration stay on your device • No third-party SDKs WHO IT'S FOR • Carpenters and builders checking walls, cabinets, and frames • Plumbers and landscapers setting drain and patio falls • DIY homeowners hanging shelves, pictures, TVs, and mirrors • Photographers aligning tripods and subjects • Woodworkers checking joinery and surfaces ZenLevel isn't a novelty. It's a precision instrument that lives in your pocket, ready to settle "is this level?" in seconds.

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.