Bubble Level & Angle Meter

TeamCoolApps

Contains ads

About this app

Bubble Level & Angle Meter is a calm, precise measuring tool for shelves, pictures, TV mounts, drains, roofs, furniture, caravans and RVs — with sound, vibration and voice feedback for when the screen is out of sight.

WHY THIS ONE
• Calibration that makes sense. A guided two-step flip measures on one spot, turns the phone around on the same spot and measures again. That cancels the camera bump, the case and the sensor's own offset — and the surface does not need to be level.
• No ad ever sits on a measuring screen. The tool is never covered.
• Works fully offline. No account, no sign-in, no analytics.
• Honest precision. After calibration, phone sensors read to about 0.1°. A stability indicator shows when the reading has stopped moving, and the app never claims more precision than the sensor supports.

LEVEL
• Surface (bullseye), bar and plumb modes
• Automatic mode switching from how you hold the phone, with manual lock
• Reading in degrees, % grade, mm/m, in/ft, roof pitch x/12 or ratio 1:n — tap the number to switch
• "Over" cell: how much higher one end is over a length you set
• Hold and auto-hold freeze a reading you cannot see
• Zero makes the current surface the reference
• Tolerance from ±0.1° to ±1.0°, three smoothing levels
• Keep the screen on while measuring

ANGLE AND CLINOMETER
• Full angle on any edge
• Set zero, then measure relative to it — copy a stair rail or roof angle
• Target angle with the guide tone as you approach it
• A → B measures the angle between two surfaces
• Roof pitch, complement and supplement at a glance

CAMERA LEVEL AND SIGHT
• Live level line and grid over the camera view for picture frames, shelves and doors
• Sight mode reads the elevation angle to the top of a tree or building
• With distance and eye height it works out the height of the target
• A photo is saved only when you tap capture, with the angle stamped on it

TOOLS FOR REAL JOBS
• Slope check: drain 1–2 %, ramp 1:12, shower, patio, roof or a custom band, with too flat / too steep / pass
• RV and caravan: which side to raise, by how much, and how many leveling blocks
• Furniture and appliances: which foot to turn and by how much, with washer, fridge, table, pool table, aquarium, 3D printer and bed presets
• Height finder, roof pitch, picture and TV
• Calibration for flat and each edge, with one-tap reset

EYES-FREE
• Beep at level, or a guide tone whose beeps speed up as you get closer
• Vibration pulses near level and a buzz when you are there
• Optional voice readout of the angle every few seconds

LOOK AND FEEL
• Paper, Graphite and high-contrast Outdoor themes
• Yellow, orange or mint accent
• Big, readable numbers that work outdoors
• Designed for phones and tablets, portrait and large-screen rotation
• English for now; more languages are on the way

PRIVACY
• Sensor readings stay on your phone and are only held in memory while you measure
• Camera frames are shown live and never recorded or sent
• No analytics and no crash-reporting SDKs
• The app uses Google AdMob for one banner on the Tools list, never on a measuring screen; AdMob may use the advertising ID, as the privacy policy explains
• Besides that banner, the only network request is the feedback message you choose to send
• Privacy policy: https://coolapphelpdesk-bot.github.io/bubble-level-privacy/

A phone is a useful level, not a certified instrument. For structural work that must meet a standard, check with a certified level.

Questions or ideas: [e-mail]

What’s new

First release.

Surface, bar and plumb levels; clinometer with zero, target and A → B; camera level and height finder; slope, RV, furniture and roof-pitch tools; two-step flip calibration; degrees, % grade, mm/m, in/ft, x/12 and 1:n; sound, vibration and voice feedback; Paper, Graphite and Outdoor themes.

Works fully offline. No account, no analytics.