Bubble Level: Ruler & Measure

Turn your phone into a precise bubble level. Check any surface in seconds, lock and save readings, and measure small objects with the built-in screen ruler.

Bubble Level & Ruler turns your iPhone or iPad into a precise, easy-to-read spirit level and pocket measuring tool. Hang pictures perfectly straight, align shelves and furniture, check the slope of any surface, or measure small objects — no extra tools needed.

PRECISE BUBBLE LEVEL • Accurate readings down to 0.1 degree • Works horizontally and vertically — plus a bullseye level for flat surfaces • Large, clear angle readout you can see from across the room • Switch between degrees and percent slope • One-tap calibration for perfect accuracy on any device

LOCK & SAVE MEASUREMENTS • Tap to lock the current reading — no more chasing the bubble • Measurement history saves your readings automatically • Review horizontal, vertical, and tilt values anytime

BUILT-IN SCREEN RULER • Measure small objects right on your screen • Centimeters and inches side by side • Drag to measure — the exact length appears instantly

MADE TO BE SIMPLE • Clean, realistic spirit-level design • Light and dark mode • Multiple color themes • Haptic feedback when the surface is level • Works on iPhone and iPad • No account, no sign-up — open the app and start measuring

WHO IS IT FOR? Perfect for DIY projects, home improvement, hanging picture frames and shelves, assembling furniture, checking countertops and appliances, woodworking, construction, camping and RV leveling — anywhere you need a quick, reliable level or ruler.