Spirit Bubble Leveler is a free Android app developed by Alejandro apps n games. It is a handy utility tool that allows you to check if an object is straight and level. With its easy-to-use interface, you can quickly check the level of any surface by holding your phone against it. The app provides accurate X and Y values, which you can calibrate according to your liking.

The app has several features that make it useful for home, hobby, and construction sites. It offers a variety of background images, text colors, spirit and bubble colors that you can customize to your preference. When the bubble hits the center of the spirit scale, it changes color with a suitable sound effect, which you can turn off in the settings. You can also display only the X or Y axis or both values. Although the app does not replace the classic robust water bubble scale from hardware stores or carpenters, it is definitely a useful tool to have on hand.