This app provides square feet and inch measurements and volume calculations for footings, walls, slabs, and cylinder columns. Inputs are feet and inches with volume results in cubic yards. Recently added, the app performs decimal feet operations and conversion to inches and feet. Square and decimal operations allow for various precisions (1/4, 1/8, 1/16, 1/32). My father a concrete mason, carried around a calculator and concrete ruler in addition to all his construction tools to measure basic concrete construction calculations his whole career. This app was created to lighten his number of tools and remove the burden of manually calculating basic algorithms all in one place. Please let me know if you encounter any issues with the app, it is my intention to make this app as simple and convenient as possible to allow anyone with basic square and volume calculation needs a reliable tool. Thanks!