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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Question marked as Top-ranking reply

Posted on Mar 19, 2025 1:19 PM

I am receiving the same error message of my new iPhone 16 Pro. "The Qardio service cannot be reached. Please check your internet connection and try again."

34 replies

May 20, 2025 1:57 PM in response to Geoffrey Radbill

Geoffrey Radbill wrote:

Did exactly as you suggest. Changed my hotspot vpn to the UK. Received the same responses as in the past which would suggest that Qardio's servers are down.

Did you make sure that the Qardio app was closed then logged onto the VPN? The first time I did at the app was not closed. I closed it re-launched it. It would not let me login with my account I had created previously, but I was able to create a new one with no problem. I am now able to login.

May 26, 2025 1:23 PM in response to RenoAcesGuy

It would be helpful if users who have 'solutions' would specify that it's only something 'you could try'. Answering that a VPN will fix the problem sends people thru hoops they don't need to attempt. Purchasing a VPN, installing it and re-installing the app on a commentators 'solution' that's unconfirmed doesn't help. Not trying to be harsh here.


Fortunately I didn't pursue this for my Quardio device. Most of the links on the website are busted. I tend to think Quardio Inc is having problems. Not sure why the app is still available in the store but that's avove my pay grade.


Jun 7, 2025 11:11 AM in response to skip101

Okay, that one puzzles me totally. lol


Does the iPhone 8 version even log into their servers? Maybe the old versions were standalone? I don't even know how you could tell if it's trying to log in to their servers. I suppose you could turn off wifi and cellular and just connect via bluetooth to the device and see if it works?


If so the iPhone 8 ver doesn't need the servers at Quardio.

Jun 7, 2025 2:01 PM in response to skip101

So you do need to enter userid/password on the iPhone 8? Then it must be hitting some server(s). Perphaps one for that version at least. Still sitting in a corner and forgotten by the decommision team. Yul Breener is turning over in his grave. They could have at least decoupled it from reliance on the servers before termination. I have an Omron monitor that you can use with or without the cloud services. I got nothing.

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

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