Qardio heart health 4+

Blood pressure, weight, ECG

Qardio, Inc.

Designed for iPhone

    • Free
    • Offers In-App Purchases


Qardio makes it easy to manage your heart health. Record and store your vitals, and have the power to make more informed health choices. Track blood pressure, irregular heartbeat, 12 body composition metrics (BMI, body fat %, muscle %, bone %, water %, etc.), weight, temperature, blood oxygen and pulse rate.

The Qardio app works exclusively with our award-winning devices: QardioArm smart blood pressure monitor, QardioBase X smart body composition scale, QardioTemp forehead thermometer and QardioSpO2 pulse oximeter. Get your Qardio device at or Amazon.

Qardio devices are clinically validated, generating accurate blood pressure, weight management and heart health data with medical precision.

Easy to set up and pair with any Qardio device. Take a measurement with the touch of a button.
There is no need for pen and paper, as all your measurements are conveniently stored on your phone or smart device and accessible whenever you need it.

You can track your progress with smart charts, stats and trends, set up goals and reminders and find out how your lifestyle impacts your health.

Share your numbers with your doctor between visits so they can give you more personalized care and identify changes earlier. Give peace of mind to family and friends by sharing data, and notifying them when a measurement has been taken.

Qardio and Apple Health work seamlessly together, enabling easier health tracking with all your health and wellness information in one place.


Qardio App offers an auto-renewing monthly subscription for QardioArm users called Qardio+. This monthly subscription includes a medically detailed auto generated health summary report, data enriched with weather and air quality information, medication tracking, dedicated customer support, etc., for just $9.99/month.

**Featured in Forbes, The New York Times, The Huffington Post, GQ, Vogue, NBC, The Financial Times, WIRED, Wall Street Journal, BBC, PC Magazine, Vanity Fair and many more.**

Qardio is for anyone who wants to take control of their heart health, improve fitness and achieve their health goals. It is also for people with a heart condition or chronic condition, which needs to be monitored or improved, and for those recommended by their doctor to track their blood pressure and manage their heart health.

Compatible with iOS version 12.4 and higher, Apple Watch and Siri.

Privacy is at the core of our business. Data is stored and protected with the most advanced systems and technologies. Qardio App has voice-over functionality for the visually impaired.

QardioArm and QardioCore have regulatory clearance in the United States, the European Economic Area, Australia and Canada.
QardioBase X has regulatory clearance in the United States, the European Economic Area and Australia.
QardioTemp and QardioSpO2 have regulatory clearance in the United States and the European Economic Area.

Qardio’s products and application should be only used in conjunction with professional medical advice, diagnosis, or treatment, and not as a substitute, or a replacement for it.

Terms of Use:

What’s New

Version 2.6.2

This version of the Qardio App includes general bug fixes and stability improvements.

The Qardio App works with QardioArm to track your blood pressure and QardioBase to track your weight and body composition data in a way that makes health monitoring effortless and actionable. When connected to QardioCore, Qardio App tracks continuous medical grade electrocardiogram (ECG/EKG), heart rate, heart rate variability, skin temperature, respiratory rate, activity, and more.

*** Qardio App used in combination with QardioArm, QardioBase and now QardioCore tracks all your heart health in one place. Sync your data automatically with Apple Health. QardioCore is currently only available outside of the USA. ***

*** Qardio makes it easy to keep your health in check and works with Apple Health and Apple Watch. We hope you enjoy this update! If you do, please leave a review on the App Store. ***

Ratings and Reviews

4.6 out of 5
17.8K Ratings

17.8K Ratings

dot.matt ,

Potentially life saving definitely life changing

I’m still young-ish and always had very excellent blood pressure so was surprised when my cardiologist and then GP agreed that my blood pressure was way too high. They wanted me to get a device and measure my BP. I didn’t know how really and didn’t want something that would take long to complete. I found this device and app and really love it. It’s very quick to use so it does not take time (I’m more likely to take my BP more often) and the recording / tracking is the best part bc it automatically records then shows me not only the results but how good or bad they are with a quick graph. And the accumulated data is, of course, great to see over time.
It’s very easy and most importantly quick to use. So, I desire to use it and am more closely following and rectifying my BP. I don’t want medication so I’m doing this, instead.

Justin Kent ,

Broken and corrupting data

I’m not sure if it’s the iOS 13 update or what, but I’m ready to throw this thing in the trash. First of all, throughout the last 18 months of owning Qardiobase 2, it has been nominally reliable, with spats of problems. All of a sudden, the scale will be off by 10+ lbs, consistently the same amount, and then a reboot of the scale will fix it. This is annoying and undermines trust of the product and brand, but I’ve dealt with it by going into the app and deleting those data points. Today, it started giving me wild results, but when I went into the app to delete the data, that no longer works. So I tap delete, but the data point remains. I had to go into Health app to delete multiple data types, and still the scale is registering me as a different member of the household, with no way to correct it. I do not feel this product is stable enough to be used as a tool for health and fitness. I regret the purchase and I’m ready to move on.

Update: I have done a system reset of the scale and it appears to be working again. I’m still frustrated, but at least my problem has been resolved for the time being. I feel the app does many extraneous things that I don’t use, and would prefer the development team spend their time focusing on stability of the core features like weighing and storing the results. The UX of the app is pretty wonky, it does not feel at all like a native app.

Developer Response ,

Hi there! We’re sorry to hear about your experience with QardioBase. If you haven’t already done so, please reach out to our support team at so we can have someone learning more about the issues you ran into and offer a solution.


App Routinely Crashes

I’ve been a regular user of QardioArm A100 blood pressure monitor for about 1 year. The first 9 months or so months it seemed like the ideal monitor. I even bragged about it to my medical provider. I had the setting set up for 3 consecutive measurements with the photo display running during the measurement process. Shortly after switching to a new iPhoneX the app began routinely crashed midway during the process. Frequently during the first 1 of 3 measurements. I then changed my setting from 3 to 1 reading and also turned off the photo feature. It helped but did correct the problem. The app still frequently crashes and closes. I am working hard to manage my BP and now am having to rely on a single measurement, this is a concern, especially because the QuardioArm’s instructions clearly state that a user needs multiple measurements for a more accurate reading. Additionally, I have corresponded with their customer service through email, they were responsive, acknowledging my concerns but in the end offered no solution. As time passes I keep hoping I’ll see an app update in the iTunes Store but thus far I have seen nothing. In fact I find no history that they ever do any corrective updates. It’s disappointing that what had started out as an excellent price/value tool and resource is now no more than just another outdated technology purchase flopping around in my junk drawer like my old flip phone.

Developer Response ,


It sounds like there may have been an issue with the installation of the Qardio App on your iPhone X. Our Support team would recommend that you simply uninstall and reinstall the Qardio App to resolve the issue you are experiencing. Kindly give this tip a try and feel free to reach out to if you continue to experience an issue.

App Privacy

The developer, Qardio, 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 Linked to You

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

  • Contact Info
  • 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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