Bubble Level & Digital Ruler
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Everyone
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100+
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Everyone
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About this app
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.
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.
Accurate Bubble Level, Spirit Level, Angle Finder & Digital Ruler
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- This app may share these data types with third partiesLocation and Device or other IDs
- No data collectedLearn more about how developers declare collection
- Data is encrypted in transit
What’s new
Bubble Level & Digital Ruler - What's New
* More Stable Readings: Angle display is now steady on flat surfaces with reduced flickering.
* Level Beep: Now sounds when either the X or Y axis reaches level, not only both.
* Bubble Level: Align frames and furniture with a precise spirit level.
* Digital Ruler: Measure small objects in cm and inch modes.
* Screen Stay: Keep the screen on while measuring.
* Ruler Memory: Your cm/inch choice is now remembered.
* Smaller download size.
* More Stable Readings: Angle display is now steady on flat surfaces with reduced flickering.
* Level Beep: Now sounds when either the X or Y axis reaches level, not only both.
* Bubble Level: Align frames and furniture with a precise spirit level.
* Digital Ruler: Measure small objects in cm and inch modes.
* Screen Stay: Keep the screen on while measuring.
* Ruler Memory: Your cm/inch choice is now remembered.
* Smaller download size.
