Your Apple Health data, distilled.
BLIP turns what your Apple Watch already collects into Recovery, Sleep, and Strain scores you can actually use.
Everything you need to understand your body.
BLIP reads what Apple Health already collects and turns it into Recovery, Sleep, and Strain scores. No proprietary wearable required.
Recovery
5 of 6 metrics available
Metrics
Recovery Score
Wake up to a personalized Recovery Score calculated from overnight HRV, resting heart rate, sleep quality, and more, compared against your 30-day personal baseline.
Sleep
Sleep Score
Sleep Score
Get a detailed Sleep Score every night based on duration, deep/REM/core stage breakdown, sleep efficiency, and awakenings.
Strain
240 HR samples analyzed
HR Zone Breakdown
Strain Score
Track your cumulative daily cardiovascular load across five heart rate zones. Know when you’ve pushed hard enough and when to back off.
AI Coach
Hey there! I noticed your recovery has dipped a bit this week, spending most days in the yellow zone, and you're averaging about an hour less sleep than your body needs.
Your resting heart rate is trending down nicely though, which is a positive sign your body is adapting well to your activity levels.
What's been going on lately? Have you been dealing with extra stress, or just burning the candle at both ends?
Your Personal Health Coach
Ask questions about your health data and get actionable, personalized advice based on your Recovery, Sleep, and Strain scores.
Built different. Built for you.
Designed from the ground up with privacy and simplicity in mind. No account required. No tracking. Your health data stays on your device.
Works with Apple Watch
No proprietary wearable required. BLIP reads from the Apple Watch and HealthKit sources you already own.
Personal baseline
Scores are compared against your personal 30-day rolling average, not generic population data.
On-device processing
All health data processing happens entirely on your device. Raw data never leaves your iPhone.
Zero tracking
No analytics, no advertising, no third-party SDKs. BLIP contains zero external dependencies.
Long-term trends
Track 27 health metrics across Recovery, Sleep, Heart, Body, and Activity. See how your patterns evolve over weeks, months, and beyond.
Free to use
Download BLIP and start tracking your health scores at no cost.
Cycle Tracking
Track your menstrual cycle with phase estimation, regularity scoring, and cycle history. Log flow directly to Apple Health.
Workout Logging
Log strength training workouts and track your streak. See your workout history with a contribution chart and weekly summaries.
Frequently asked questions
Have another question? Reach out to us.
What data does BLIP need?
BLIP reads heart rate, HRV, resting heart rate, sleep analysis, respiratory rate, SpO2, wrist temperature, weight, body fat, workouts, active energy, steps, VO2 Max, and more from Apple Health. An Apple Watch is recommended for the best experience, but BLIP works with any source that writes to Apple Health.
How is my Recovery Score calculated?
Your Recovery Score is a weighted combination of overnight HRV, resting heart rate, sleep quality, respiratory rate, SpO2, and wrist temperature, compared against your personal 30-day rolling baseline. Scores personalize over 14 days as BLIP builds your baseline.
What if I don’t have all the health metrics?
BLIP gracefully handles missing data by redistributing weights to the metrics that are available. HRV and resting heart rate are the minimum required for a Recovery Score.
Is my health data safe?
All health data processing happens entirely on your device. BLIP never transmits raw health data to any server or third party. There are zero analytics, tracking, or advertising SDKs in the app. BLIP also writes workout logs, water intake, menstrual flow, and caffeine entries to Apple Health with your permission. All other access is read-only.
What about the AI Coach?
When you subscribe to AI Coach and grant consent, your messages and computed health scores (Recovery, Sleep, Strain, trends, and related metrics) are sent to Anthropic's Claude API for personalized coaching. No raw Apple Health data is ever sent. You control data sharing from the app's settings and can revoke it at any time. See our Privacy Policy for the full list of data shared.
Do I need an Apple Watch?
An Apple Watch is recommended for the richest data (HRV, sleep stages, wrist temperature), but BLIP works with any HealthKit data source including iPhone-only sleep tracking.
Is BLIP free to use?
Yes. Recovery, Sleep, and Strain scores, health trends, cycle tracking, workout logging, and all core features are completely free. The AI Coach is the only paid feature, available as an optional subscription. Try free for 7 days.
What is the Strain Score?
Strain tracks your cumulative daily cardiovascular load across five heart rate zones. It uses a logarithmic scale from 0 to 21, so higher-intensity activity contributes exponentially more. Great for knowing when you’ve trained enough or when you can push harder.
Is BLIP a replacement for my doctor?
Nope. BLIP is a wellness tool that helps you understand your health trends, not a medical device. It's great for knowing when to push harder or take it easy, but it's not designed to diagnose, treat, or prevent any condition. Talk to a healthcare professional for medical advice.