Diagnos is a free iPhone application designed to assist users in monitoring their nutritional intake effectively. It provides comprehensive tracking of calories, proteins, carbs, and fats, ensuring users can maintain their dietary goals throughout the day. The app features a HEI (Healthy Eating Index) score that evaluates diet quality and a DIAStreak feature that encourages the maintenance of healthy eating habits.

Additionally, Diagnos offers a unique meal scanning feature that allows users to capture images of their meals for instant nutritional insights, which are then logged into a personal nutrition dashboard. Users can also keep track of past meals, access local restaurant menus, and utilize a diary to review their nutritional progress over time, making it an ideal tool for anyone looking to improve their eating habits.