HR Zones

Heart Rate Zones – Calculate Your Training Zones HR Zones helps you calculate personalized heart rate training zones and put them to work. Guided first-run setup captures your profile, then the app shows five science-based zones with Age, Max HR, and BPM ranges at a glance. Train smarter with goal-based recommendations, a time-in-zone planner, and a multi-segment zone timer. Share your zones as text or an image. Support multiple profiles for family or clients—all data stays on device. Key Features: • First-run onboarding with privacy & health disclaimer • Multiple max-HR formulas (Standard, Tanaka, Gulati, Custom) • Gender recommendations and optional Karvonen formula • Multi-profile support with calculation history • Train tab: goals, time-in-zone planner, zone timer • Optional Apple Health: resting HR + workout zone analysis (on device) • Private Coach: on-device Apple Intelligence tips when available, offline tips otherwise • Home Screen & Lock Screen widgets for your zones • Siri/Shortcuts: ask for a zone’s BPM range • Live Activity countdown while a zone timer runs • Goal highlights on zone cards • Share zones as text or image • Modern materials UI, haptics, light & dark mode • No account required—preferences stay on your device Included vs. Pro: The five-zone calculator, every formula, Karvonen, one profile, widgets, Help, and share-as-text are included with the app. HR Zones Pro (optional one-time in-app purchase, no subscription) adds extra profiles, history export, the Train tools (goals, planner, zone timer), Health workout analysis, and the Private Coach. How It Works: 1. Complete onboarding and set your date of birth 2. Review Max HR and five training zones 3. Pick a goal on the Train tab 4. Plan session time by zone or start the timer 5. Share your zones or switch profiles as needed Perfect For: • Runners and cyclists • Fitness enthusiasts and coaches • Multi-athlete households • Anyone learning zone training Heart Rate Zones puts transparent, science-based zone training in your pocket with a privacy-first design. This app is informational only and is not a medical device. Consult a clinician before starting or changing an exercise program.