Cardiogram: Heart Rate Monitor

In-app purchases
11.4K reviews
Content rating
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Cardiogram is a heart rate monitor and symptom tracker that helps you detect and manage chronic health conditions. See minute-by-minute heart rate information collected by your smartwatch, not just a summary. Set customized heart rate alerts for high and low readings. Use interactive, color-coded charts (with pinch-to-zoom) of your heart rate data, step counts, time-stamped symptoms, and medication.

Search your symptom history to make connections between your symptoms, triggers, medications, how you’re feeling, and your heart rate information. Get weekly risk scores for hypertension, sleep apnea, and diabetes.

Download a comprehensive report of your symptoms and readings to share with your doctor. You can also connect a family member to your account so they can see your data.

We take your privacy seriously. We use healthcare-grade encryption and we don’t sell your data.

• A digital diary of your heart rate data. See how your pulse changes with interactive, instant heart rate graphs.
• Track your health with a comprehensive breakdown of all your data points with symptoms and mood logging
• Highlight and make notes on any section of your heart health data to identify what may have caused a spike or dip in your heart rate
• See your trends in Smart Metrics with personalized recommendations for lifestyle changes to improve your scores

• Track unlimited custom symptoms in seconds using time-stamped tags
• Symptoms are connected to your heart rate and step counts
• Customize the symptoms you want to track and group into categories
• Share a report of your symptoms and related heart rate data with your doctor. Your doctor can use this objective history data to speed diagnosis or manage an existing condition
• Download your data into a spreadsheet (CSV format)
• Enrich your data with time-stamped, daily journal entries

• Track personalized risk scores to see how your health is changing over time and how different habits are affecting your risk.
• Scores are generated by our clinically validated AI algorithm using factors such as age, sex, height/weight, and metrics collected from your smart watch.

• We retrieve sleep tracking data directly from the Google Fit, Fitbit, or Garmin Connect apps and show this information in the context of your heart rate.

• View your instant heart rate or track your daily heart rate through charts
• View your heart rate variability while working out
• Customize the frequency that Cardiogram measures your heart rate
• The Cardiogram Wear OS app on your watch works even if you use an iPhone

Cardiogram is only available in English at this time.

SUPPORTED DEVICES include smartwatches with a heart rate sensor including:
Garmin Epix, Fenix, Forerunner, Instinct, Venu, Vivoactive, Vivosmart series
Samsung Galaxy Watch 5, Watch 4, Watch 4 Classic
Fitbit Charge, Versa, Sense, Inspire, Luxe Series
Fossil Julianna HR, Carlyle HR, Sport, Venture HR, Explorist HR, Q series
Google Pixel Watch
Huawei Watch 1 and 2
LG Watch Sport
Misfit Vapor
Moto 360 Sport
New Balance RunIQ
Polar M600
TicWatch S, E, and Pro

Cardiogram is currently a subscription-only service with a 30-day free trial for new users.

Terms of Service:
Privacy Policy:
Updated on
Aug 23, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info, App activity and 2 others
This app may collect these data types
Personal info, Health and fitness and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

8.92K reviews
Natia M
August 21, 2023
I have loved this app, and I do pay for the subscription. In recent months, there have been quite a few glitches recording my heart rate and syncing from my watch as well as syncing activities from Google Fit. I contacted Support, and while they provided various suggestions, all of which I tried, the excuse is now the "third-party apps." Sorry, I expect more from a paid app, and if you can't deliver what you advertise, then don't charge for it.
29 people found this review helpful
Did you find this helpful?
Michaela Trelby
July 14, 2023
I really want to love this app. It tracks my heart rate FAR more specifically than my Fitbit app does, which is so important for my needs. I can see every little spike and drop in my heart rate, even if it only lasts a minute. However, the app itself is glitchy, frequently will not open at all without restarting the app multiple times, and when I do get it open, there will be gaps in the data, as if I had taken my watch off, or it will refuse to refresh collected data. Not worth a subscription.
49 people found this review helpful
Did you find this helpful?
Sandra Rodriquez
August 14, 2023
I just downloaded the app 1 hour ago and signed up for the yearly subscription. I tried getting on the app on my phone, and I got the following error: There was an error starting Cardiogram. I closed and re- opened the app numerous times. I read through the reviews and found that most people were having the same problem. I made the mistake of not reading the reviews before downloading and signing up for the yearly subscription.
33 people found this review helpful
Did you find this helpful?

What's new

Fix font sizes