
Spirit level and Plumb line
Bubble Level and Plumb Bob
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About
Turn your phone into a precise, reliable tool for measuring tilt angles and checking surfaces. This app combines the classic functionality of a bubble level and plumb line with modern digital capabilities.
Key features:
• High measurement accuracy: Uses your device's sensors to determine tilt in degrees, radians, or percentages.
• Two-position calibration: A unique calibration feature (at 0° and 180°) ensures maximum accuracy, even on devices with sensor deviations.
• Audio and vibration feedback: Get instant feedback when a surface is perfectly level, without needing to look at the screen.
• Continuous audio signal: A "smart" sound feature changes the tone based on the tilt angle, helping you level objects by ear.
• Measurement history: Save recent measurement data to easily track your work.
• Stability indicator: A built-in algorithm signals when the readings have stabilized, ensuring the most accurate capture.
• Flexible settings: Customize sensitivity (tolerance), units of measurement, and visual themes to suit your needs.
Who is this app for?
• Builders and tradespeople: For installing furniture and leveling walls, floors, and structures.
• Photographers: For perfectly leveling the horizon when shooting on a tripod.
• Car enthusiasts: For checking vehicle tilt when parking or setting up a camper.
• DIYers: For hanging pictures, shelves, and TVs straight.
Why "Pro Level"? We focused heavily on stability and a simple interface. The app is free of clutter, runs quickly, and—once properly calibrated—delivers accuracy comparable to professional tools. Make your next project perfectly level with the Pro Level!
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What's New in Spirit level and Plumb line
1.0
July 13, 2026








