Rex.fit is an AI-powered fitness and nutrition coach that offers personalized workout and diet recommendations based on health goals such as weight loss, muscle gain, or longevity. It features gamified workouts, real-time progress tracking, and calorie monitoring using computer vision. Users can log meals and receive daily updates through messaging apps. Backed by scientific research, Rex.fit provides actionable insights to optimize health and fitness, with upcoming features like WhatsApp bot integration and automated reports.