Open before noon and get a morning briefing: wake body battery, last night’s sleep, today’s strain target, recovery, and a single line of guidance.
Your Body Battery
How am I today? One screen tells you.
Apple Health stores the raw data; it doesn’t spell out what it means for right now. Your Body Battery opens on Today — body battery, recovery, and the metrics that matter, with guidance you can act on. All computed on-device. No account. No cloud vault for your vitals.
iPhone & Apple Watch
On-device
Requires Apple Health
Why
Built for people who already track health on Apple Watch.
The Health app is a vault of numbers. Your Body Battery answers the morning question: how am I today? Recovery, sleep, stress, and training load in one scroll, with a fast mirror on Apple Watch.
Scroll Today for contextual insights, sleep debt, and a scrubbable 24-hour drain timeline. Sleep, Stress, and Strain tabs are one tap away when you want depth.
Features
Everything the app does
Where Apple Health shows what was recorded, Your Body Battery shows what it implies.
Today home
Hero Body Battery with wake start ring, recovery score, sleep/stress/strain row, insight cards, sleep debt, and a scrubbable 24-hour drain timeline. Evening Wind-Down suggests a bedtime window.
Morning briefing
On first open before noon: wake energy, sleep score, strain target, recovery, and one actionable line for the day.
Home Screen widget
“Today at a Glance”: small Body Battery ring with strain vs. target, or a medium layout with Sleep, Stress, Strain, and today’s target.
Body Battery (0–100)
Real-time energy with color bands. Detail adds sleep recharge, stress drain, activity drain, awake drain, and hour-by-hour charts.
Sleep analysis
Sleep score from your longest session: stages hypnogram, overnight HR, HRV, respiratory rate, efficiency, heart-rate dip, consistency, and sleep debt.
Stress monitoring
Score from HRV and resting HR vs. your rolling baseline. Timeline, zones, workouts called out, peak stress and recovery windows.
Strain & target
Daily strain with cardio, strength, and passive components; dynamic target from sleep, recovery, and yesterday’s load; HR zone summaries.
History & weekly review
Calendar heatmap, jump to any day, weekly narrative plus wake vs. end body battery and metric trend charts.
Glossary & what-if
In-app glossary on any metric. What-if sliders explore how sleep or strain might change scores.
Onboarding & notifications
Health permissions, optional profile, up-to-90-day import, morning report, sleep summary, recovery insight, stress spike, strain target, post-workout, bedtime, weekly summary, Watch haptic nudge, quiet hours.
Settings & data
Light / dark / system theme, sync interval, subscriptions, Health Data Check, export, algorithm changelog, policy links.
Apple Watch
Today hub with large Body Battery and mini gauges for Sleep, Stress, Strain. Complications, on-wrist fallback when iPhone sync is stale, optional silent haptics.
Apple Watch
Today at a glance on the wrist.
Wake start as a ghost arc, energy label, three mini gauges — then swipe for full metric screens. Complications cover Body Battery, Sleep, Stress, and Strain.
Privacy by architecture
No sign-in, no social graph, no Body Battery server that stores your vitals. Health data is read from Apple Health on device, scores are computed locally, notifications are scheduled on-device. Subscriptions are billed by Apple. Read the Privacy Policy. Not medical advice.
Get the app
Free on the App Store for iPhone and Apple Watch. Requires recent iOS and Apple Health data.
Download on the App Store