How to fix Qardio Heart Health app connection issues on iPhone?

My Internet connection is working but the Quardio sevice cannot be reached.



[Re-Titled by Moderator]

iPhone 16 Pro Max, iOS 18

Posted on Mar 18, 2025 2:43 PM

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Posted on Nov 25, 2025 12:50 PM

Qardio went out of business.


Your blood pressure sleeve is still good though.


In lieu of the Qardio app, there is an alternative app in the app store called LibreArm.


Simply make sure your phone is paired via bluetooth to your phone, and the LibreArm app will do (almost) everything the Qardio app did ... It will do all the important stuff like take upto 3 measurements, record the data in Apple Health, etc.

89 replies

Sep 26, 2025 10:56 PM in response to Mac Jim ID

I had the same problem, so I figured out how to connect to the QardioArm and then build a free app so that I could continue to use it. All the app does is inflate the cuff (once), take the measurement and then (optionally) drop it into Apple Health.


I’ve made the app source code available open source and also got it through the Apple App Review so that it’s available to anyone in UK or USA.


Feedback always welcome, but I don’t want anyone to suffer with a useless bit of tech.


https://apps.apple.com/gb/app/librearm/id6752661389

Dec 18, 2025 12:57 PM in response to ptylr

It appears that the app gives me a choice to take 3 readings and average, then drop it into Apple Health. Does that make sense?

I just got a 17 pro max, and of course the Qardio app is useless. When I got a new 16 pro earlier this year, the Qardio app did not work. Then one day, on a whim, I clicked it, and it worked. I have no idea how that worked.

Hoping that Librearm will work. Thanks for you efforts.

How to fix Qardio Heart Health app connection issues on iPhone?

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