<qa>  What is the purpose of this randomized study?Objective: The purpose of this randomized study is to assess the efficacy of a mobile application for the promotion of healthy lifestyle habits diet and exercise in CRC survivors. In a more specific way, analyze the effectiveness of the implementation to maintain healthy lifestyle habits in patients newly diagnosed with CRC through adherence to a healthy lifestyle exercise and diet, as well as facilitate changes in clinical variables: body composition, quality of life, physical condition related to health functional ability, strength and flexibility. 