Indiana Technology and Manufacturing Companies (ITAMCO) recently released two manufacturing apps to assist those involved in the gear industry. The first is a Metal Weight Calculator, it can calculate the weight of various types of metals in all shapes and sizes. The second is a Thermal Expansion Calculator, it can calculate the change in dimensions of a given material when it is heated or cooled. These new apps join earlier ITAMCO releases including a Hardness Conversion application, GearWare, an app that converts different pitch sizes and Feed Rate Calculator, an application that simply calculates feed rates and speeds for the machinist. All of ITAMCO's applications are free and available at the iTunes website.