Your Body Battery

Understand your body. Four scores. One clear picture of how you feel.

Four scores. One clear picture of how you feel. Apple Health stores the raw data; it doesn’t spell out what it means for today. Your Body Battery does — four answers you can actually use.

The app reads the same information already in Apple Health and distills it into real-time energy, sleep quality, stress, and daily strain: what matters for planning your day, with charts, trends, and optional nudges. No extra accounts — everything stays on your device.

Body Battery -Circular gauge with color bands for high → very low energy -Day timeline for charge and drain events -Cards: sleep recharge, stress drain, activity drain, short-term trend

Sleep -Sleep score gauge with excellent → poor bands -Stage strip: awake, REM, core, deep -Overnight vitals sparklines and debt / efficiency cards

Stress -Live score mapped to calm → very high zones -Area chart across waking hours; sleep shown calmly -HRV & RHR context, time-in-zone, peak markers

Strain -Log-scaled daily strain with “target” marker -Build-up curve with workouts labeled -Cardio vs. strength vs. passive split and zones

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