Cardiogram: Heart Rate Monitor 12+

Instant Pulse Health Mate

Cardiogram, Inc.

    • 4.6 • 13.2K Ratings
    • Free
    • Offers In-App Purchases


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.

By connecting Apple Health, Cardiogram will pull in ECG and Blood Pressure readings to have 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 spikes or dips 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

Cardiogram receives ECG and blood pressure readings through the Apple Health app.
• If you take an ECG reading using your Apple watch, you can see the results directly within the Cardiogram app and it will be included with your doctor report.
• Using an Apple Health-compatible Bluetooth blood pressure cuff, readings will be imported into the Cardiogram app, connected to that day's data.

• 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 Apple Health, Fitbit, or Garmin Connect apps and show this information in the context of your heart rate.

• View your instant heart rate or view your daily heart rate chart on your wrist
• View your heart rate in real-time while working out
• View daily metrics like resting HR, peak HR, low HR, steps, and sleep BPM

Cardiogram is only available in English at this time.

SUPPORTED DEVICES include smartwatches with a heart rate sensor including:
Any Apple Watch
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:

What’s New

Version 3.7.21

Application improvements and notification styling.

Ratings and Reviews

4.6 out of 5
13.2K Ratings

13.2K Ratings

Jackiesdiabeticlifeaftercovid ,

My diabetic life

I am a nurse and a very healthy person that contracted Covid 19 at work. I did not know that I had the virus except for the fact that my vision was different and I was urinating more frequently. These changes occurred over a one month period so I didn’t think much about it. When I did go to the doctor I was told that I was positive for the virus and that my blood glucose was 455. I didn’t feel sick no fever or cold like symptoms, just elevated blood glucose.. I stayed in the ICU room for about 2 days and then I went to a regular room…I was given insulin around the clock to return my glucose to a safe range, 250 before I was released…..Then my journey began, I am now diabetic…eating healthy, drinking more water, and most importantly, walking daily… I couldn’t have lost 49 pounds and monitored my vitals signs, and made all the necessary changes without the information provided to me by this app. It is my first line of defense, knowing. Knowing my numbers, heart rate, and being able to target my goals.. yes it is a great app.

Cathydsrna ,

Premium has a serious glitch(s)

The big advantage of the premium cardiogram app subscription is the ability of the app to alert you to elevated heart rate and low heart rates that could be indicative of a heart problem. You adjust the settings for high and low bpm. The default high heart rate setting is 129 beats per minute. The problem I have encountered numerous times since I started my subscription is that I get high heart rate notifications from cardiogram while I am working out in cardio sessions. These alerts come even though I have opened and am using my exercise app on Apple Watch 4 which syncs to cardiogram. Cardiogram app recognizes that I am in a workout as when I finish my workout by selecting end workout I get a nice workout display on the cardiogram app. I shouldn’t be receiving high heart rate alerts during a workout as I am trying to reach my target heart rate which is almost 150 bpm. Cardiogram premium should have different high heart rate alert settings: one for during workouts which for me might be 160 bpm and another for when I am not exercising which would be a lot lower. I agree I can change the settings before and after each exercise period but who will remember to do this and for the price of this app this should have been thought through.
Also at first I believed the premium app said they would respond to comments submitted thru the app in 24 hours. Now it says 4 business days. I sent an inquiry almost a week ago and have not had a response.

Developer Response ,

This is very helpful feedback, we're really sorry for not responding to your email. I've notified the team and we're working on a fix. We'd love to get more detail on the issue though—could you email me at

Swetiepeti ,

Isuues and no help

So I had issues. Like I asked for them NOT to use my main EMAIL as I really don’t like the idea of what if they get hacked into like yahoo and others? I’d rather they used my throwaway Facebook account for me to use as a sign in and them to know my FB password as I really don’t care so much about it as I do my email account. I’ve emailed about it more than once and no one bothered to email back.
I had issues with my graphs not populating.... except for the Steps. But I have a Fitbit so that’s redundant. The main thing I wanted it for was to watch my heart and so far, it’s done a spectacularly crappy job at that. It doesn’t tell me a rhythm, only a high, doesn’t tell me a low. I’m trying to see what value it has OVER the HealthKit heart rate
I finally uninstalled it. Thanks for nothing guys. You were singularly unhelpful.

Update: Cardiogram support eventually got back to me and they reset my account. For those who have yet to open a Cardiogram account here is my advice. Make a throwaway email account to attach it to. Because they were nosy post on other formats. What business is it of theirs who my “friends” are? Oh and they’ll “ask permission before they post on your account”. Uh, I don’t want to take the time to say no. So upgrading from a 1 although I’m not sure how much more helpful it is than HealthKit truly. I have yet to see a aha moment

Developer Response ,

Hi Swetiepeti! I was going through our old reviews and just wanted to follow up on this. I thought you might be interested to know that last year, we made it possible for users to use Cardiogram without creating an account so users don't need to share their email if they don't want to.

I'm sorry to hear that it took such a long time for you to get a response to your concerns. We've made a lot of improvements to our support processes, so if you ever decide to give Cardiogram another try, we're here for you!

We've also added additional features (e.g., we do now show a low!) that will (hopefully) provide more value to our users, such as a journal section to track notes and symptoms, and multiple export formats for our Premium users.

In any event, thank you for being one of our earlier users and for taking the time to update your review! I hope all is well and that you're staying safe. If you have any thoughts or concerns, please feel to reach out to me directly at Take care! ^Linda

App Privacy

The developer, Cardiogram, Inc., 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 Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Contact Info
  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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