Roughness is an Android app developed by Ruschak Wasyl that helps determine the surface roughness of typical surfaces and metal processing. The app offers translations of Ra - Rz - Class of roughness to help users understand the surface characteristics of materials.

The app is free and falls under the category of Business & Productivity, making it a useful tool for professionals working in the manufacturing and engineering industries. The interface is simple and easy to navigate, with clear instructions and descriptions of the different roughness classes. Overall, Roughness is a helpful app for determining surface roughness and is a must-have for professionals in the industry.