The paper focuses especially on comparison of available programs for design and check of the mechanical components. The main aim of the paper is to analyse in the introductory part the individual programs from the perspective of content and functionality and consequently to compare the results experimentally in selected cases. The paper evaluates simplicity or complexity of work with the individual software types on the basis of input requirements [Bicejova 2016a]. The conclusion summarizes the issue and experience acquired in designing and in checking of the mechanical components.