Bubble Level: 0.1° Clinometer

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Content rating
Everyone
50+
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Content rating
Everyone
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About this app

Turn your phone into a reliable bubble level and digital clinometer that reads in 0.1° steps whenever you need to level a desk, balance a washing machine, hang picture frames straight, align a camera tripod, or level a camper van on uneven ground.

Designed for home DIY projects, woodworking, furniture installation, and outdoor leveling, Bubble Level combines four dedicated measuring instruments in one clean, high-contrast interface.

■ Four Automatic & Manual Modes: Surface, Bar, Plumb, and Slope
Switch automatically based on how you hold your phone, or lock the mode manually for specialized tasks:
· Surface Level (Bull's-eye): Lay your phone flat on a table, shelf, or appliance to read 2-axis tilt at a glance, complete with simultaneous Left/Right (Roll), Front/Back (Pitch), and Total Tilt degree readouts.
· Bar Level: Rest the long edge of your phone against a shelf or frame to slide the horizontal vial bubble along a single axis.
· Plumb Gauge: Hold the phone upright against a wall, door frame, or post to check true vertical alignment and side-to-side balance.
· Slope Clinometer: Measure roof pitch, ramps, and inclines with a clear reference line and oversized digital degree display.

■ Target Angle Presets & Haptic Vibration Alert
Working inside a cabinet or above eye level where you cannot see the screen? Pick from quick presets (`0°`, `15°`, `30°`, `45°`, `60°`, `90°`) or enter a custom target angle. Enable "Vibrate on target" to receive instant tactile feedback the moment your surface reaches the exact angle.

■ One-Tap Zero Calibration & Adjustable Tolerance
Camera bumps and protective cases never get in the way. Place your device on any reference surface and tap [Set as level] to calibrate zero in a single tap, or tap [Reset reference] to restore factory sensor alignment at any time. Choose between Fine, Standard, and Loose level tolerance to match the precision required for your job.

■ Hold Lock, Timestamped Measurement History & Dark Mode
Tap [Hold] in tight spaces to freeze the current angle readout on screen, or tap [Save] to log measurements with date and time stamps in the History tab for side-by-side comparison. Switch seamlessly between a crisp Light UI for daylight work and a high-contrast Dark UI for dimly lit workshops and night camping.

■ 100% Offline & Privacy-First Utility
Operates strictly using your device's built-in motion sensors. Zero camera, microphone, location, or contact permissions required—no login, no tracking, and ready the instant you open it.
Bubble Level to 0.1° by numbers, not by eye. One-tap zero, buzz at target.
Updated on
Oct 21, 2026

Data safety

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 parties
    Device or other IDs
  • This app may collect these data types
    Location, App activity, and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

· Refined the settings icon to be left-right symmetric
· Stability improvements and bug fixes