RunnersHeart

Train smarter with real-time heart rate zone feedback. Feel your zone changes through haptic alerts on Apple Watch.

RunnersHeart transforms your Apple Watch into a smart running coach that keeps you in the right heart rate zone.

REAL-TIME ZONE FEEDBACK • Feel haptic vibrations when you enter a new heart rate zone • Each zone has a unique vibration pattern - instantly know your intensity • Stay in your target zone without constantly checking your watch

PERSONALIZED HEART RATE ZONES • Choose between %MaxHR (simple) or Heart Rate Reserve (advanced) methods • Auto-estimate your resting heart rate from HealthKit data • Zones automatically calculated based on your age and fitness level

DETAILED WORKOUT ANALYSIS • View time spent in each zone with beautiful charts • Track your training load with Edwards TRIMP score • See your GPS route with smoothed path visualization • Share workout cards as beautiful images

DESIGNED FOR RUNNERS • Minimal interface - focus on your run, not your screen • Works offline - no internet required during workouts • All data stays on your device - complete privacy • Syncs seamlessly between iPhone and Apple Watch

HEART RATE ZONES EXPLAINED Zone 1 (Warmup): Easy effort, recovery Zone 2 (Endurance): Comfortable, fat-burning pace Zone 3 (Tempo): Moderate effort, improves efficiency Zone 4 (Threshold): Hard effort, builds speed Zone 5 (Sprint): Maximum effort, peak performance

Whether you're training for a marathon or just getting started, RunnersHeart helps you run at the right intensity for your goals.

Privacy: Your health data never leaves your device. We don't have servers - everything stays between you and Apple HealthKit.