The Fitness Nutrition Tracker is a mobile app for iOS developed using the Swift programming language. The app allows users to build a nutrition plan based on their body measurements and fitness goals. Users can log their daily meals on a macronutrient level and track their progress compared to their nutrition plan. Users can log and track their weight to motivate them to work towards their fitness goals. The app has various charts to allow the user to visualize their progress and review their data easily.