Simply an indispensable app for students of physical-mathematical faculties. That there students teachers it also does not hurt. It is a multifunctional unit Converter. You can convert time, length, mass, pressure,density, area, temperature, force, velocity, angle, energy, and many other quantities. The use of the gadget is very simple and straightforward. It is sufficient to select the desired value and a second value at which you want to see a convertible variant.