HealthLens: VO2 Max & HRV
Understand Missing Metrics
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Ever wondered why your VO2 Max hasn't updated?
Or why Apple Health shows no data for Cardio Recovery, HRV, or other health metrics?
HealthLens helps you understand the health data already on your iPhone and Apple Watch — and investigate why a metric may be missing or hasn't updated.
NO MORE MYSTERY HEALTH DATA
HealthLens turns raw HealthKit data into clear, understandable information.
For each supported metric, see:
• What the metric means
• Your latest reading
• When it was last updated
• Which device or app recorded it
• What data may be required to generate it
• Possible reasons it hasn't updated
• What you can try next
DIAGNOSE MISSING METRICS
When a metric has no recent data, HealthLens looks at the HealthKit information available on your device.
It can help you check things like:
• Recent workouts
• Workout type and duration
• Available heart-rate samples
• Data sources
• Recording device
• Last recorded sample
• Relevant HealthKit data
Instead of simply showing “No Data,” HealthLens helps you understand what may be missing.
WORKOUT INSPECTOR
Explore recent workouts and see which health data was recorded alongside them.
Check whether a workout contains data relevant to metrics such as Cardio Fitness or Cardio Recovery.
KNOW WHERE YOUR DATA CAME FROM
See whether a health reading was recorded by your Apple Watch, iPhone, or another HealthKit-compatible app.
SUPPORTED METRICS
HealthLens currently supports:
• VO2 Max / Cardio Fitness
• Heart Rate Variability (HRV)
• Resting Heart Rate
• Cardio Recovery
• Walking Heart Rate Average
• Respiratory Rate
• Blood Oxygen
• Wrist Temperature
• Walking Steadiness
• Running Power
SIMPLE TRENDS
View recent readings, trends, sample counts, and the last time each metric was updated.
PRIVATE BY DESIGN
Your health data stays on your device.
HealthLens reads HealthKit data locally and does not upload your health data to a server for analysis.
No account is required.
HealthLens is an independent app and is not affiliated with or endorsed by Apple.
HealthLens is intended to help you understand and inspect health data. It does not provide medical diagnoses, treatment recommendations, or medical advice.
Privacy Policy: https://healthlensapp.pages.dev/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• New Today tab with gentle nudges that fit your day: stretch after sitting a while, step outside when you've moved less, get some sunshine, sip some water, or head to bed a little earlier.
• See today's steps, last night's sleep, daylight and your last drink at a glance. Prefer a quieter app? Turn the Today tab off in Settings.
• HealthLens now speaks Korean and Traditional Chinese.
• Refreshed Settings: clearer icons, a plan card, and My Other Apps.
• Everything is calculated on your device — your health data never leaves it.
The developer, 金苹 卢, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 金苹 卢
- Size
- 4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Simplified Chinese, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- HealthLens Pro Lifetime $9.99
- Copyright
- © 2026 Lujinping