Bubble Level: 0.1° Clinometer

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.

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