Spirit Level & Bubble Level

Lay your phone on a surface and read its tilt straight away: a round bullseye vial, two tube vials and a live readout of roll, pitch and the overall tilt of the surface.

🔵 BULLSEYE AND TUBE VIALS

The round vial shows tilt on both axes at once. Two tubes split it into roll (left-right) and pitch (front-back). When both are within 0.6°, the status turns green and reads LEVEL.

📐 DEGREES OR SLOPE PERCENTAGE

Readings are shown to one decimal, in degrees or as a slope percentage: handy for a shower drain fall, a ramp or a deck. A third value gives the overall tilt of the surface.

✋ HOLD THE READING

Tap the vial or the Hold button to freeze the numbers, then read them in comfort.

📳 VIBRATION WHEN LEVEL

The phone vibrates the moment the surface becomes level, so you don't have to stare at the screen. You can turn vibration off in settings, and the screen stays on while you measure.

🎯 WHAT IT'S FOR

• Hanging a picture or putting up a shelf

• Checking a table, a counter or a piece of furniture

• Leveling a washing machine, a turntable or a pool table

• Leveling a caravan or motorhome

⭐ PRO OPTION

Calibration sets the zero on a surface you choose, to compensate for a phone case or a slightly offset sensor; you can go back to the factory zero at any time. Pro also unlocks the four vial themes. Pro is a weekly subscription with a 7-day trial (ads stay on during the trial); ads disappear once the subscription starts. Reading the level never requires a subscription.

The measurement uses only your phone's motion sensor and works without a network connection. No account needed.

USING A SPIRIT LEVEL ON YOUR PHONE

This spirit level app needs nothing more than the motion sensor already built into your phone. Using a spirit level on your phone is simple: lay it flat and bring the bubble into the center ring. As a spirit level with degrees, it shows each axis to a tenth of a degree, or as a slope percentage. Spirit level calibration, included in Pro, sets a new zero when a phone case skews the reading. Laid on the floor, the phone becomes a spirit level for caravan and motorhome pitches. It also works as a spirit level for washing machine installation: set the phone on the lid and adjust the feet.

More ways to use it

• Digital bubble level app: get shelves, pictures and furniture perfectly level

• Surface slope percentage for drains, ramps and patios

• Freeze the reading with Hold to lock the current tilt angle in place

• Vibration when level: instant alert without looking at the screen

• Roll and pitch readout for carpenters and DIY builders

• Works offline: full spirit level replacement with no internet needed