Cardiogram: Heart Rate Monitor 12+

Instant Pulse Health Mate

Cardiogram, Inc.

    • 4.6 • 11K Ratings
    • Free
    • Offers In-App Purchases


Cardiogram is a heart health monitor that helps you learn what your heart is telling you. Join millions of others who have uncovered new cardiovascular conditions like atrial fibrillation and sleep apnea, caught a medical emergency, adjusted treatment plans, and improved fitness.

Track your heart health and understand your sleep, stress, and cardio fitness through interactive charts, comprehensive metrics, and notes that help track day-to-day fluctuations in your heart health.

Cardiogram goes beyond taking your pulse rate, it will help you build lifelong habits to optimize your heart health. Take control of your goals, whether it’s to lose weight or improve your cardio fitness. Insights into your sleep, stress, fitness, and lifestyle will help optimize your overall heart health with long-term trends to see how building new habits will improve your daily heart rate metrics. Join the cardiogram community to find a new healthy habit or activity you’ll love!

Pulse Monitor & Heart Analyzer:
• A digital diary of your heart rate data. Monitor your heart health and see how your pulse changes with interactive, instant heart rate graphs.
• Help you and your doctor track your heart health with a comprehensive breakdown of all your heart health 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, like stress, diet, or medications.
• Compare your resting heart rate, steps, and sleep to other Cardiogram users.

Cardiogram receives health data from the Health app on your iPhone.

Heart Health Report Card:
• Track personalized risk scores to see how your heart health is changing over time and how different habits are affecting your risk for heart attacks and chronic disease.
• Compare your heart rate with past days and search through all your labeled data.
• Scores are generated by our clinically-validated ML algorithm using factors such as age, sex, height/weight, and various heart rate metrics.

Apple Watch Companion App:
• View your instant heart rate or view your daily heart rate chart on your wrist.
• View your heart rate in realtime while working out.
• View daily metrics like resting HR, peak HR, low HR, steps, and sleep BPM.

Supported devices with a heart rate monitor:

-All Apple Watch models
-Fitbit Charge™ family
-Fitbit Versa™ family
-Fitbit Inspire HR™
-Fitbit Ionic
-Fitbit Alta HR
-Fossil Julianna HR, Fossil Carlyle HR, Fossil Sport, Fossil Venture HR, Fossil Explorist HR, Fossil Q series
-Garmin Fenix 5 Series
-Garmin Forerunner 35, 235, 645, 735XT, 935
-Garmin Vivoactive 3
-LG Watch Sport
-Misfit Vapor
-Moto 360 Sport
-New Balance RunIQ
-Polar M600
-Ticwatch S, Ticwatch E, and Ticwatch Pro

Subscription Info:
• Payment will be charged to Apple ID account at confirmation of purchase.
• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
• Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase.
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription.

Terms of Service:
Privacy Policy:

What’s New

Version 3.7.10

Bug fixes and improvements

Ratings and Reviews

4.6 out of 5
11K Ratings

11K Ratings

Sara3bey ,

Overdue Updated Review, Excellent HR Tracking!

I love this app, and rely on it to monitor my HR spikes and symptoms. I am also thrilled to find that the widget has dark mode, and it is now across the top of my phone screen, so I won’t have to keep checking the app. For patients discovering they have OI after COVID/ etc, my tip is to keep the HR monitor as a complication on your Apple Watch, every time you are about to stand up, change from laying to sitting, lean forward for laundry/ shoes, etc, run the HR tracker on the watch and go about your business (you may have to restart a few times or adjust your settings). If/ when you feel super woozy, check Cardiogram (which will have everything there in color from the watch recording). Often I find a super high HR spike, which left me feeling weak, woozy, short of breath, depending on the day! I also take screenshots and mark them up for my Drs & PTs, so we can work towards eliminating those behaviors that caused the spikes for some autonomic retraining etc :) wishing health and happiness for all.

Developer Response ,

Hi Sara3bey! Thank you for the update on your overall experience with Cardiogram. I'm happy to hear that things are working out and that Cardiogram is shaping out to be a good tool on the go. You probably already know this :D but, If you have any trouble please send us an email at so we can work with you to get everything sorted out! Stay healthy and well out there. - Kevin

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


12-month subscription
Unlock the full heart monitoring toolkit
Free Trial
Cardiogram Premium (1 month)
Unlock the full heart monitoring toolkit
Free Trial

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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