Mobile Spirit Level is a free utility tool developed by Lev Alekseevskiy for Android devices. This simple tool uses the device's accelerometer to provide accurate readings of the level of flat surfaces.

The interface of the Mobile Spirit Level is straightforward and intuitive. The app's main screen displays a horizontal bubble that moves as the device is tilted, indicating the degree of deviation from the horizontal plane. The readings are precise and reliable, making it an excellent tool for DIY projects, carpentry, and other related tasks.

Overall, Mobile Spirit Level is a handy and practical tool for anyone who needs to measure the level of flat surfaces. It is easy to use and provides accurate readings, making it a must-have for DIY enthusiasts and professionals alike.