FIT&FUEL The Fitness Tracker

Abstract:

The Fit&Fuel application is a comprehensive Flutter-based fitness and nutrition management platform designed to address the fragmented landscape of mobile health and wellness solutions. Conventional fitness applications either focus exclusively on workout guidance or nutrition tracking, compelling users to manage multiple disparate tools for a holistic health management experience. Fit&Fuel bridges this gap by delivering a unified, offline-first platform that integrates structured exercise video tutorials, intelligent calorie and macronutrient calculation, context-aware recipe suggestions, and curated workout playlists within a single cohesive application. Developed using Flutter with the GetX state management framework, the application adopts a feature-driven modular architecture that ensures scalability, maintainability, and high performance across Android devices. The nutrition module employs the Harris-Benedict Basal Metabolic Rate formula to compute personalised daily calorie and macronutrient targets based on user-defined fitness goals, weight gain, loss, or maintenance, while an intelligent error-scoring algorithm matches users with nutritionally compatible recipes from a bundled offline database. The exercise module provides multi-level filtering by body part, muscle group, and equipment type, accompanied by embedded video demonstrations for proper form guidance. An integrated music player supports background audio playback with persistent notification controls, enhancing the workout experience. By consolidating these capabilities into a fully offline platform, Fit&Fuel empowers fitness enthusiasts with comprehensive health management tools accessible without any network dependency.