A fitness tracking app that turns daily movement into measurable progress. Designed with engagement psychology in mind — every interaction reinforces the habit loop that keeps users coming back. Features three interlocking activity rings tracking movement, exercise, and standing goals; continuous heart rate monitoring with zone-based training insights; weekly progress charts and social challenges with leaderboards. Designed in dark mode with electric coral accents, clean card layouts, and circular progress indicators. Built with React Native patterns and Framer Motion animations.