With the Toolbox app, you can measure anything you want and your smartphone will help you with this. The tool will be useful both at home and on the construction site.
Features:

• Set includes 14 different tools (altimeter, barometer, decibel, compass, teslameter, metronome, timer, stop watch, plumb Bob, seismometer, level, ruler, protractor, spirit level)
• Measurement of local atmospheric pressure
• Built-in GPS to determine the elevation above sea level
• Navigation and setting the course in any campaign, the journey, walk etc.
• Measurement of acoustic pressure
• a magnetic field Detector, metal detector
• built-in accelerometer
• Accurate measurement of surface slope, vertical position and centering of the object.