Level Tool

Professional Level & Precision Tools

8 essential measurement tools in one app: bubble level, ruler, compass, barometer, metal detector and more.

Download on the App Store
Level Tool app showing bubble level with precision angle measurement
Level Tool app showing compass, barometer and metal detector tools
App Store listing: Level Tool โ€” Bubble Level for Pros with Ruler, Compass, Barometer and Metal Detector.

All Tools Included

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Level

Precise bubble level

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Dual Level

Two-axis leveling

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Plumb

Vertical alignment

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Ruler

Screen-based ruler

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Laser Level

AR laser projection

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Compass

Digital navigation

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Barometer

Altitude & pressure

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Metal Detector

Magnetic detection

Frequently Asked Questions

What is Level Tool?

Level Tool is a professional-grade iOS app that combines 8 essential measurement and detection tools in one application: bubble level, dual level, plumb, ruler, laser level, compass, barometer, and metal detector. Perfect for DIY enthusiasts, contractors, and professionals.

How accurate is the bubble level?

The bubble level uses your iPhone's precision accelerometer and gyroscope sensors to provide highly accurate readings. You can calibrate the level on a known flat surface for maximum precision. The app displays angles down to 0.1 degree accuracy.

What is the difference between Level and Dual Level?

The standard Level shows angle measurement on a single axis (like checking if a shelf is horizontal). The Dual Level displays a circular bubble that shows leveling on two axes simultaneously, perfect for leveling surfaces like tables or platforms.

How does the Plumb tool work?

The Plumb tool helps you check vertical alignment, similar to a traditional plumb bob. It uses gravity sensors to show whether a wall, doorframe, or any vertical surface is perfectly perpendicular to the ground.

Can I measure objects with the Ruler?

Yes! The Ruler tool uses your iPhone's screen to measure objects placed against it. The ruler is calibrated for your specific device and displays measurements in both metric (cm/mm) and imperial (inches) units.

What is the Laser Level for?

The Laser Level uses your camera to project a virtual laser line on your screen, helping you align pictures, shelves, or any objects that need to be perfectly horizontal or at a specific angle. It includes a flashlight mode for low-light conditions.

How does the Compass work?

The Compass provides accurate directional navigation using your iPhone's magnetometer. It displays cardinal directions (N, S, E, W) and precise degree headings. Great for outdoor activities, navigation, and orientation.

What does the Barometer measure?

The Barometer displays atmospheric pressure readings and calculates your approximate altitude above sea level. It's useful for weather prediction, hiking, and understanding environmental conditions. Readings are shown in multiple units (hPa, mbar, inHg).

How does the Metal Detector work?

The Metal Detector uses your iPhone's magnetometer to detect ferrous (magnetic) metals nearby. It displays signal strength in microteslas (ยตT) and provides visual and audio feedback. Perfect for finding studs in walls, locating pipes, or detecting hidden metal objects.

Does the app work offline?

Yes! Level Tool works 100% offline. All tools use your device's built-in sensors and don't require an internet connection. Pay once and use forever with no subscriptions or ongoing fees.

Which iPhone models are supported?

Level Tool supports iPhone and iPad devices running iOS 17.0 or later. The app is optimized to take advantage of the precision sensors in modern iOS devices for the most accurate measurements possible.