Heart Rate Zone Tracker: Master Your Cardiovascular Training

This isn't just another fitness tracker; it's a focused app designed to help you understand your cardiovascular training through heart rate zone analytics. Track your time spent in each heart rate zone daily, weekly, monthly, and more. Set personalized goals, choose from various scientifically-backed methods to calculate your maximum heart rate, and visualize your progress with intuitive charts. The app supports dark and light modes and prioritizes your privacy by keeping your health data securely on your device. Ideal for runners, cyclists, swimmers, and anyone training with heart rate zones.