Heart Monitor: ECG & Labs
Live heart rate, ECG & labs
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
Live heart rate, ECG analysis and your checkup results — all in one place. Free for 30 days.
Watch your heart rate from your Apple Watch live on your iPhone, review your ECG recordings, and keep every health checkup result in one place.
LIVE HEART RATE
- Your Apple Watch keeps its heart rate sensor running and sends readings to your iPhone every few seconds
- A large, easy-to-read number with a heart that beats in time
- A graph of the last 5 to 60 minutes
- An ECG-style monitor that beats in sync with your heart rate
- Each measurement is saved automatically and can be exported as CSV
ECG
- Recordings made with the ECG app on your Apple Watch are shown on a grid, just like on paper
- Monitor playback replays the 30-second tracing at the original speed, and starts automatically when a new recording arrives
- Automatic analysis detects the R waves and reports heart rate, RR variation, QRS duration, P wave clarity, ST level and ectopic beats
- Your recording is compared with eight built-in reference waveforms (normal sinus rhythm, atrial fibrillation, sinus tachycardia, sinus bradycardia, PVC, bundle branch block, ST elevation and ST depression) and ranked by similarity
- You can save your own ECG as a reference waveform and compare later recordings against it
- An illustrated guide explains what the P, QRS and T waves mean and what abnormal ones look like
RHYTHM
- Reads the beat-by-beat interval data your Apple Watch records and assesses it one beat at a time
- Detects ectopic beats, long pauses, missed sensor detections and irregular rhythm
- An RR interval chart with findings
- Shows the history of irregular rhythm, high heart rate and low heart rate notifications from your Apple Watch
HEALTH METRICS
- Heart rate, resting heart rate, HRV, blood oxygen, respiratory rate and walking heart rate average
- Daily, weekly and monthly charts for each one
CHECKUPS
- Photograph your results sheet and the values are read in automatically (you review and correct them before saving)
- About 70 tests supported, covering blood work, urinalysis, measurements and cancer screening
- Each value is compared with its reference range and marked in range or to check
- A trend chart per test so you can compare with previous visits
- Plain-language notes explaining what each test actually measures
- Height, weight, BMI, waist, body fat, blood pressure, pulse and blood glucose can be written to the Health app
ALERTS AND SETTINGS
- Get notified when your heart rate goes above or below limits you set
- Connection diagnostics and troubleshooting for your Apple Watch
PRICING
Every feature is free for 30 days after you install the app. After that, a one-time purchase keeps it unlocked. There is no subscription.
PLEASE NOTE
- An Apple Watch (Series 4 or later, watchOS 10 or later) is required
- ECG recordings are made with Apple's own ECG app; this app cannot start one
- The analysis in this app is for reference only and is not a medical diagnosis. If you have symptoms, please see a healthcare professional
- This app cannot measure blood pressure
- Photos of your results sheet are processed only on your device and are never sent anywhere
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This version adds English support throughout the app.
- The entire app is now available in English
- Health checkup records now have their own tab for quicker access
- Fixed a crash when taking a photo of a results sheet with the camera
- Checkup values written to Health no longer affect the latest value shown on the Metrics tab
The developer, YOSHIYUKI UEMATSU, 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
- YOSHIYUKI UEMATSU
- Size
- 2.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- すべての機能（買い切り） $3.99
- Copyright
- © 2026 Yoshiyuki Uematsu