Bubble Level & Inclinometer

Free. No ads. No limits. No data collected. 100% offline. Level, inclinometer, roof pitch & slope in one calibrated tool.

Bubble Level & Inclinometer turns your phone into a fast, trustworthy level and angle finder — for DIY, trades, and everyday fixes.

Get a true reading in under a second: • 2D bullseye level for flat surfaces • Horizontal & vertical spirit level • Full inclinometer / angle finder in degrees, percent grade, mm/m and roof pitch (x:12)

Built to be trusted: • Guided 180° calibration wizard — calibrate once, trust every reading • Tolerance mode with OK / NEAR / OUT haptic and sound guidance, so you can work without staring at the screen • Confidence bar shows how stable the reading is • Hold / Freeze, relative zero (Set 0), measurement history with CSV export, and a shareable measurement card

Perfect for: • Hanging pictures, shelves and frames perfectly straight • Checking roof pitch and slopes • Leveling an RV, trailer, appliance or furniture • Tiling, decking, ramps and stairs • Woodworking angles, miter and crown molding

No ads. No limits. No subscriptions. No data collected. Works 100% offline.

Most level apps bury the measurement under ads and paywalls. This one doesn't. It stays out of your way, respects your privacy, and just measures — accurately, every time.