You are living in the age of technology where you can find quick and easy methods of working. Now even a small child loves to play with small electrical toys. So, this is the reason that your mobile phones have been loaded with applications to help you convert computer measurements, cooking measurements and density measurements.
It will not be wrong to say that these small devices have made the life easier than past. If you have to work in kitchen then you can use it to convert cooking measurements or in other case you can use it to convert density measurements if you are working with some technical machines.