# HealthLens: VO2 Max & HRV — Understand Missing Metrics

> Understand Missing Metrics (iPhone/iPad app by 金苹 卢.)

- Source: https://appshunter.io/ios/app/healthlens-vo2-max-and-hrv/id6800595787 (this page in markdown: same URL + `.md`)
- Developer: [金苹 卢](https://appshunter.io/developer/1885537846)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 3 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2026-08-22
- Data updated: 2026-09-07
- User reviews in markdown: https://appshunter.io/ios/app/healthlens-vo2-max-and-hrv/id6800595787/reviews.md

## What is HealthLens?

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/

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| HealthLens Pro Lifetime | $9.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-23

No release notes.

## More apps by 金苹 卢

- [LaterFilm - 拍立得日记](https://appshunter.io/ios/app/laterfilm/id6770865259)
- [BrewTimer - 手冲咖啡计时器](https://appshunter.io/ios/app/brewtimer/id6772894275)
- [CalWall - 日历壁纸](https://appshunter.io/ios/app/calwall/id6774586339)
- [PeekMD: Markdown HTML Viewer](https://appshunter.io/ios/app/peekmd-markdown-html-viewer/id6775353195)
- [WaterGrug: Water Tracker](https://appshunter.io/ios/app/watergrug-water-tracker/id6776118486)
- [Archive - 随身私人博物馆](https://appshunter.io/ios/app/archive/id6780727770)

All apps by 金苹 卢: https://appshunter.io/developer/1885537846

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*