A bubble level, spirit level or simply a spirit is an instrument designed to indicate whether a surface is horizontal (level) or vertical (plumb). Bubble Level app is handy, accurate, simple to use and incredibly useful tool for your Android device. Hold any of the phone's four sides against an object to test it for level or plumb, or lay it down on a flat surface for a 360° level.

Bubble Level app also features a bull's eye level meter which is a circular, flat-bottomed device with the liquid under a slightly convex glass face with a circle at the center. It serves to level a surface across a plane, while the tubular level only does so in the direction of the tube. Bubble Level app tries to mimic the real bull's eye level and displays the data as real bull's eye level meter would.

If you need to level items remotely, you have the option to display the image delivered by the phone's camera as the background of the view. In this way it is easy to level objects that are far away, or it is more practical to rotate them without having the phone on the element.

A Bubble Level, Ruler is usually used in construction, carpentry and photography to determine if objects on which you're working on are level. Used properly, a bubble level can help you create flawlessly leveled pieces of furniture, help you when hanging paintings or other items on the wall, level billiard table, level table tennis table, set up a tripod for photographs and much more. It's a must have device for any home or apartment.

It also has the option to save the information recorded by the inclinometer, allowing to store the angle of inclination, orientation and date of registration

Increases the precision of the spirit level. It compensates for the curvatures of the phone like a protruding camera or buttons. You can calibrate one flat surface (front or back) and one edge. The selected edge will be shown on the bottom-right button.

✦ The on-screen bar contains a number of functions:

➠ length measurement
➠Determination of thickness
➠ distance measurement
➠ Setting units: cm or inch.

In extreme cases, this method is useful for engineers. If you choose to use a different edge or position your phone on the wall (e.g. while dealing with ceilings), change the bottom right button to 2 and calibrate for these surfaces. Toggle the calibration according to the surfaces used.

Of course, these are not all areas of application. A ruler for measuring various parameters, a measuring tape and a vernier caliper can be used wherever calculations, distance measurements, or even determination of the thread pitch on bolts or screws are required. For example, in a garden or greenhouse, if you want the holes to be at a certain distance from each other.

The major feature of the application is its broad functionality of building. The standard of the digital building is clear and easy to use.

✦ Main functions

☛ Use any side of your device to measure the inclination and angle and length
☛ 4 different display modes;
☛ Show ruler in centimeters, millimeters and inches
☛ Display measuring result in angle, inclination and roof slope
☛ Display measuring project and its details
☛ Move three points to determine the angle of the measured object
☛ Open any photo in the album to measure the angle

✦ About calibration

➠ You can calibrate any side of the device independently. When using your phone in landing mode, it is best to calibrate your device using two samples : a first one and then a second one after rotating your phone by 180 degrees.

Thanks & Enjoy.....!!!!!!!!!!

// Option A //

To download Bubble Level Pro - Spirit Level mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Bubble Level Pro - Spirit Level mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Bubble Level Pro - Spirit Level from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Bubble Level Pro - Spirit Level in HappyMod App.