The goal of this app was to reach a wide spectrum of people who need a calculator. For people who just need quick calculations to people needing more advanced calculations, this calculator app meets the demands. Sometimes, in life, you don't how important a calculator is until you actually need one. I found myself using one for my monthly bills and some of my college coursework. This app met my needs and then some. It's free and it has plenty of features that I don't even know what they would be for. So, that means if you are more advanced ad this stuff than me, then you will definitely find this calculator app to be very useful and beneficial.