Bubble Level & Digital Ruler

Hang a picture frame straight. Check whether a shelf actually sits level. Measure something small when there's no tape measure in reach. Bubble Level & Digital Ruler keeps a spirit level and a screen ruler in your pocket, so a two-minute job doesn't mean digging out the toolbox.

The level reads your phone's accelerometer in real time and shows tilt as a moving bubble plus exact X and Y angles. The ruler turns your screen into a measuring scale in centimetres or inches.

🔧 BUBBLE LEVEL & SPIRIT LEVEL

Three levels in one screen, so you can check almost any surface:

• Bullseye level: A round vial for flat surfaces like tables, shelves and floors

• Horizontal tube: A classic spirit level vial for left-to-right alignment

• Vertical tube: For door frames, posts and anything upright

The bubble moves the way a real one does: it drifts toward the high side and settles smoothly instead of twitching. Angles update live in degrees, and the readout holds steady at 0.0° once a surface is level, so you're not squinting at a flickering number.

WHAT PEOPLE USE IT FOR

• Hanging frames, mirrors, shelves and wall art

• Levelling washing machines, fridges, desks and furniture

• Carpentry, woodworking and DIY around the house

• Checking a slope, a ramp, or a surface angle on site

• Quick alignment checks when a proper level isn't nearby

LEVEL FEATURES

✔ Live X and Y angle readout in degrees

✔ Smooth, damped bubble movement — no jitter

✔ One-tap zero calibration: set your current surface as 0°

✔ Screen lock to freeze a reading while you look at it

✔ Beep alert the moment an axis hits level (can be turned off)

✔ Screen stays awake while you measure

📏 DIGITAL RULER

No tape measure? Lay a small object on the screen and drag the two guides to its edges. The measurement updates as you drag.

RULER FEATURES

✔ Switch between centimetres and inches - your choice is remembered

✔ Guides snap onto exact tick marks for clean readings

✔ Live measurement shown in large, readable numbers

✔ Millimetre marks in cm mode, 1/8" marks in inch mode

Note: the ruler measures objects up to the length of your screen, and screen

readings vary slightly between phone models. Treat it as a handy estimate, not a

replacement for a calibrated tape.

⚡ FAST AND LIGHT

• Opens instantly - no splash screens, no waiting

• Small download, light on storage

• The level and ruler work without an internet connection

• Clean layout with nothing to learn

🎨 MAKE IT YOURS

• Light and dark mode

• Turn the level beep on or off

• Privacy Policy and Terms available inside the app

🛠 WHO IT'S FOR

DIYers and homeowners, carpenters and woodworkers, decorators and interior designers, students, and anyone who has ever eyeballed a shelf and regretted it.

A NOTE ON ACCURACY

This app uses the sensors already in your phone. It's genuinely useful for everyday levelling and quick checks, and the calibration button lets you zero it against a surface you trust. For structural, engineering or safety-critical work, use a calibrated tool.

Download Bubble Level & Digital Ruler and stop guessing whether it's straight.