Heart Rate Zones Trainer

Stop guessing how hard to train. This app turns your age and resting pulse into five precise heart-rate zones, so every run, ride or row lands exactly where your goal needs it. WHY THIS APP • Five personal zones from proven formulas — Fox, Tanaka and Karvonen • Pick a goal — burn fat, build endurance or raise your threshold — and see the exact beats per minute to hold • Guided live sessions track your time in each zone in real time • Full history with time-in-zone charts and your resting heart-rate trend • Reads heart rate from Apple Watch, or enter it by hand • Clean, native design with light and dark mode HOW IT WORKS 1. Add your age and resting heart rate to build your zones 2. Choose a target zone and start a session 3. Finish and save to watch your fitness build over time FULL ACCESS Guided sessions, goal targets and your saved history unlock with a weekly, yearly or lifetime plan. Every workout stays private on your device — no accounts, no ads, no tracking. — LEGAL — Terms of Use: https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Support: tphuc.work@gmail.com