Note. The app provides a free demo period of 7 days. You can purchase the full version of the app for $2. 99. The Dukan Method is the result of doctor and nutritionist Pierre Dukan's 40 years of experience and is one of the most successful dieting tools in the world today. Meet the official mobile app. Main features: True Weight Calculator;. Diet Diary: monitor your weight, physical activity and mood;. Clear recommendations for each day;. List of allowed foods with tips;. 350 exclusive recipes;. Choice of alternating rhythm, from 1-1 to 5-5;. Record your chest/waist/hip measurements in the diary;. Store slimming progress photos;. Option to write notes in the diary;. Reminders with daily recommendations about walks and diary entries;. Option to change True Weight;. Mark your period in the diary and graph;. Reminders to drink water, with frequency settings. If you have any comments or suggestions, please write to us at firstname.lastname@example.org.