RunnersHeart

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.