Absolutely fed up with terrible customer service. Product totally stopped working. I went through ALL their on line help. Did exactly as told. No luck. I’ve then had one email after another asking m... See more
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See what reviewers are saying
The 6L produces some useful ecg data but if you have an intermittent arrhythmia, by the time you're ready to take the reading with it, the event has passed. If you happen to catch one then it does pro... See more
Initially, I thought the product was good. The multiple emails become tiresome. It became very difficult to cancel the subscription and I have been continually billed. Customer service is simply non-... See more
Company replied
Absolutely abysmal customer service. Same canned response. The device has great potential, just poorly made, extremely unreliable and lots of interference. My smartwatch is so much better.... See more
Company replied
Company details
Information provided by various external sources
AliveCor is a medical device and artificial intelligence company that sells ECG hardware and software for consumer mobile devices.
Contact info
Maiden Lane 30, 94108, San Francisco, United States
- alivecor.com
1.8
Poor
100 reviews
No recent history of asking for reviews
This company hasn't invited customers recently, so reviews may not be representative
Replied to 100% of negative reviews
Typically replies within 1 month
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Misuse of data
Spams marketing mails despite preferences. Unsubscribing does not work.
If I can't trust them with an email address, there's no way I would trust them with personal identifiable data.
They claim you can opt out of data processing, but it doesn't appear to be possible. Your medical data is always sent overseas instead of being processed locally on the device.
January 1, 2024
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration with our marketing emails. Please be assured that we respect your privacy preferences; if our unsubscribe link failed to process, it may be due to a technical syncing error. We would like to manually ensure you are removed from all marketing lists immediately.
Regarding your data, we take data security very seriously and comply with global privacy standards (including GDPR) to protect your identifiable information.
Please contact us at support@alivecor.com so we can confirm your email opt-out and address any specific concerns regarding your data.
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This is my 3rd one within a year lasts…
This is my 3rd one within a year lasts about 2 months then stops working. I mean should this be allowed? You are selling products that are not worth a penny especially when noone can get hold of customer service and a product that 100 pounds out of pocket doesn't work once again.
December 31, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration of going through three devices in a single year. This is certainly not the experience we want for our customers, and we understand your anger regarding the cost and the difficulty reaching our team.
While our devices are designed for long-term use, certain factors like battery seating or signal interference can sometimes cause issues that appear like a hardware failure. We want to investigate why this keeps happening for you and ensure you have a reliable device.
Please contact us directly at support@alivecor.com or 855-338-8800.
Kardia Mobile Device Quit Working--Cust. Svc. No Help
Kardia Mobile quit working and replacing the battery did not resolve the issue. I had been using the device on two different telephones with no issues. Alive Cor customer service could only focus on the compatibility of my telephone (one telephone was compatible and one was not -- but prior to the device malfunction, it worked equally well on either telephone). Customer service would not even consider the possibility that the Kardia Device was not working. Dealing with the Customer Service team was a complete waste of time. I purchased a new Kardia Mobile device and it works just fine on either of my telephones. So, guess what?
It was the device that had failed!!!!!!!!!!! Why not just acknowledge that the Kardia Mobile device may only last a couple of years.
December 28, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration. It’s clear our support team missed the mark by focusing on compatibility instead of acknowledging that your hardware had likely reached the end of its functional life.
While our devices are built to be durable, like any electronic, they can eventually fail. We are sorry that we didn't listen to your feedback or offer a better solution before you felt forced to purchase a new one.
We would like to make this right. Please contact us at 855-338-8800 or support@alivecor.com and mention this review so we can review your case and discuss a partial refund or credit for the replacement you had to buy.
Was good for 6months then died
Was good for 6months then died, tried new battery but no good
Alivecor not interested in helping
Avoid this product
October 18, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration. It is disappointing when a device stops working after only six months, and we are sorry that you felt unsupported when reaching out for help.
Since a battery change didn't resolve the issue, we want to look into this further as your device should have still been covered under warranty. Please contact us at 855-338-8800 or support@alivecor.com and mention this review so we can escalate your case and arrange a replacement for you.
Trying to profit from people worried…
Trying to profit from people worried about a serious illness. How low can you go?
December 5, 2023
Unprompted review
Reply from AliveCor
We are sorry that you feel this way. Our mission is to provide affordable technology that allows people to monitor their heart health from home, often providing peace of mind or data that can be life-saving.
We offer several free features, including unlimited EKGs and instant detections for AFib, Bradycardia, and Tachycardia. If you have specific concerns about our services or pricing, please reach out to us at 855-338-8800 or support@alivecor.com.
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AVOID AVOID AVOID!!!! Placed an order for a KardiaMobile
Placed an order for a KardiaMobile, turns out the hospital wanted to do a 72 hr ecg observation. I tried to cancel my order on the same day that i ordered. I sent the uk support line an email on the same day requesting cancellation. No prevail. It turned up today in the post.
Im now trying to return the item, (I literally received it today), BUT its impossible to speak to any customer service depart and theyre not responding to numerous emails. AVOID AVOID AVOID.
December 5, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the stress and the delay in our response while you were managing your hospital care. We understand how frustrating it is to receive a package you already tried to cancel.
Our team has reviewed your case and can confirm that we have now responded to your request and fully refunded your order. You should see the funds back in your account within a few business days, depending on your bank.
We are working hard to improve our response times to prevent this from happening in the future. If you need any further assistance with the return shipping, please contact us at support@alivecor.com.
My doctor recommended this device…
My doctor recommended this device following major surgery which affected my heart causing AF. I have not been able to record a reading: I get a report of 'unreadable due to interference'. Guest user, sitting in the same place as me, are able to record 'normal sinus rhythm'. I've asked KardiaMobile to refund me. I've had this device for 6months plus - it's useless to me.
June 1, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration, especially following your surgery. Sometimes, a specific device simply isn't a good fit for a user’s unique heart rhythm, and it sounds like that is the case here. Since the device is not meeting your needs, please contact us at support@alivecor.com or 855-338-8800 if you are still in need of assistance.
I have a Kardia mobile
I have a Kardia mobile. Every time I use it I get " sinus rhythm normal'.
So nothing wrong.
Not so.
I test with an identical one , but which belongs to NHS and for which they pay a monthly amount.
Result.. Ventricular ectopic heartbeats.
So you only get the truth if you pay more.
That's deliberately misleading.
I would say it's a disgrace
October 14, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the confusion regarding your results. We want to clarify that all KardiaMobile devices use the same medical-grade sensors and algorithms; we do not withhold accuracy based on payment.
The reason for the difference is likely that the NHS-provided version includes the Advanced Determination package, which specifically identifies "Ectopy" (skipped beats). Our standard device identifies AFib, Tachycardia, and Bradycardia, but classifies other rhythms as "Normal" if they don't meet those specific criteria.
It sounds like your device is working correctly but simply not labeling the specific ectopy you are experiencing. Please contact us at support@alivecor.com or 855-338-8800 so we can explain these results further and ensure you have the right tools for your heart health.
Lost Confidence In This Product
I have reported this company to the regulatory body MHRA. This is because I bought the KardiaMobile 6L
2 years ago and assumed like many people that it was pretty accurate. However, recently I had some palpitations and took a reading which said I had gone into Atrial Fibrillation, alarmed by this, I took another reading which gave the same result. I then asked AliveCor for a clinical review which cost £10.00 for each review. I was shocked to receive the results which said I a had PVCs. I contacted AliveCor for an explanation as to these conflicting results. To date after weeks of endless emails and phone calls to them, I am at a loss. Their reply is that my case is being reviewed by their internal clinical team. The stress and anxiety caused by this situation has been intolerable. I have now had to pay hundreds of pounds to see a private Cardiologist to clear-up the KardiaMobile/Clinical Review conflict. The result is that the clinical review is correct and the machine is wrong. I have FINALLY had a response from AliveCore confirming that their Kardia algorithm incorrectly read my PVCs as associated with Atrial Fibrillation. They apologised for any inconvenience that this has caused. For my distressing experience with this matter, Inconvenience is a total understatement.
August 20, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the intolerable stress and anxiety this situation has caused you. We fully agree that "inconvenience" is an inadequate word to describe the distress of receiving a false AFib notification and the subsequent medical expenses you incurred.
While our AI algorithm is highly accurate, certain heart patterns like PVCs (Premature Ventricular Contractions) can occasionally mimic the electrical signature of Atrial Fibrillation, leading to a false positive. This is precisely why we offer clinical reviews by human cardiologists to provide the definitive interpretation that the algorithm may miss.
We understand that our delay in communication only added to your frustration. Please contact us at support@alivecor.com or 855-338-8800 and mention this review so we can escalate your case to our leadership team and discuss how we can better support you following this experience.
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Quality of ecg excellent but clinician…
Quality of ecg excellent but clinician review wrong. I had clear ventricular ectopics about every 4th beat and was reported as normal. Don’t waste money on clinician review
September 1, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration caused by your clinical review. We understand how disappointing it is to have clear symptoms, such as ventricular ectopics, reported as "normal."
While our clinicians look for various arrhythmias, sometimes the interpretation of frequent ectopy can vary depending on the specific criteria used during a brief recording. We take the accuracy of our reviews very seriously and would like to have our senior clinical team re-evaluate your EKG and the initial report for our own internal analysis.
Please contact us at support@alivecor.com or 855-338-8800 and mention this review. We want to ensure your concerns are addressed properly and discuss a refund for the review in question.
Inaccurate clinician review service
I've had this device since the pandemic and until now , unquestionably trusted in its accuracy but now not so sure.
I would have given the device 5stars but recently i've been getting bizzare readings which it simply designates as tachycardia or normal sinus rhythm.
I therefore sent several traces to Alivecor clinician review (£9.99 each), which reported all as normal sinus rhythm (which was clearly incorrect) and it seemed the report is automatically generated by a machine not a human to the unsuspecting 'lay' public.
Alivecor support did not respond to my concerns regarding this service.
As its a regulated medical device, concerns can be reported to the food and drug administration (FDA) via a form on their website which consumers and patients can also submit ,which I intend to do.
August 14, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration and for the delay in addressing your concerns. We want to assure you that our Clinician Reviews are performed by human cardiac technicians and board-certified cardiologists; they are not automatically generated by a machine.
Sometimes, a rhythm can be clinically "Normal Sinus Rhythm" even if it feels unusual or includes a high heart rate (Tachycardia). however, if you feel the interpretation was incorrect, we want to investigate this immediately.
We take your feedback regarding FDA reporting seriously and would like the opportunity to have our senior clinical team re-evaluate your traces. Please contact us at 855-338-8800 or support@alivecor.com so we can escalate your case and discuss a refund for the reviews in question.
Unreliable clinician reviews
I ordered a clinician review an ECG which clearly showed ectopics and was told it was normal sinus rythmn Lol, all the other times where I've had a review the clinician has been pretty good but the one in the Netherlands is very poor certainly wouldn't use them again I won't be paying for any more services from here because the clinician reviews are clearly wrong, as some suffers from Wolf Parkinson White syndrome and atrial fibrillation I would've expected someone who was a clinician to at least be able to recognise ectopic or extra beats within a ecg rhythm strip, this is quite easy to do because they're divided up into block which indicate timings I think your clinician needs to go back to school
August 3, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration caused by your recent clinical review. We understand your concern, especially given your history with WPW and AFib, and it is disappointing to hear that this experience did not meet the standard of your previous reviews.
We would like to have your EKG re-evaluated by a clinician for our own internal analysis. Please contact us at support@alivecor.com or 855-338-8800 so we can resolve this and discuss a refund for your the review.
Not worth the time or money
I used the KardiaMobile 6L once or twice and now it doesn't work. I've tried to contact their support staff but have not heard back from them. I've replaced the battery, read the articles they post but it still does not work. They must have experienced a number of complaints too attempt to resolve their problems with the unit. Not worth the money and problems
July 16, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the frustration of your KardiaMobile 6L stopping after only a few uses, and for the lack of response from our support team. This is certainly not the experience we want for our customers.
Since you have already tried replacing the battery and troubleshooting, it’s possible your device has a hardware defect covered under warranty. We want to make this right.
Please contact us at 855-338-8800 or support@alivecor.com and mention this review. We will escalate your case to ensure you receive a working replacement or a resolution.
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Device great, but not the reports.
I'm delighted with the Kardia 6l device and app, but the clinician's reports are disappointing. They seem cut-and-paste, and fail to mention the first degree av block (and the sub-60 heart rate noted on the ecg).
July 10, 2023
Unprompted review
Reply from AliveCor
We are delighted to hear you are happy with the KardiaMobile 6L device and app! However, we sincerely apologize for the disappointment regarding your clinician's reports.
While our reports use standardized clinical language for clarity, they should always reflect the specific details of your EKG. We would like to have our clinical team re-evaluate these reports for our own internal analysis. Please contact us at support@alivecor.com or 855-338-8800 and mention this review so that we can assist further.
Nothing has changed...newer device still does not work.
I tried Kardia years ago when it was newly released. It could not distinguish PVC's from AFib so I stopped using it. Wasted a lot of time and money. Fast forward and my husband also has PVC's, however he also needs something that can reliably record his heart rate. I decided against the seemingly finicky 6L and got another Kardia mobile. I figured that in all this time there were improvements plus Kardia advertises they can now distinguish between PVC and AFib. He used it several times, several hours apart, and the recording indicated AFib... I said not possible, but just to be sure, sent it off for their "professional" reading. Came back from one of their cardiologists verifying AFib. This was very alarming, so I immediately sent my husband to urgent care for an EKG but he does not have AFib. Printed the Kardia report and took it to his PCP and Cardiologist today to get their opinion and do more testing. Per his doctors, the Kardia report did NOT show AFib!! It showed PCV's. The Kardia heart specialist did not read the report very closely, if at all. However, the Kardia also said his heart beat is normal and guess what? It is not! It is half the 70 bpm reported. He is at home now awaiting word on a pacemaker procedure. I can forgive the device for perhaps not performing as hoped--it is after all a mere single lead. But when the so-called expert also weighs in and verifies incorrect readings, what is the point? Tried to contact Kardia to discuss and it is hopeless. IF you are tracking AFib and nothing else, it might work for you. But you are better off going to an urgent care and getting an EKG. We are taking it back to the electronics store and hope they will refund our money.
July 6, 2023
Unprompted review
Reply from AliveCor
We are deeply sorry for the distress this has caused and send our best wishes to your husband for his upcoming procedure and recovery.
While certain rhythms can occasionally mimic AFib patterns or cause heart rate discrepancies in automated devices, our clinical reviews are meant to provide the professional accuracy you rely on.
Please email us at support@alivecor.com and mention this review along with your Trustpilot username. We want to escalate this immediately to complete an internal analysis of this clinician review.
So glad I read the negative reviews!
So glad I read the negative reviews!
I kind of thought this was going to be some kind of scam or defective product and of course according to the reviews that I've read it is. Plus it goes without saying that the customer service would suck as these days all customer service sucks and no company ever stands by their warranty. According to the reviews I've read this is also the case with this product. Hopefully this will be a lesson to more and more people to read the reviews before you buy something. Since I've started reading reviews before I buy, it has saved me a s*** ton of money and wasted time. Don't read the positive reviews either as most of them are fake and paid for, the negative reviews always tell it all. Thank you to everybody that left your negative reviews to save the rest of us for making the same mistake.
June 16, 2023
Unprompted review
Reply from AliveCor
We understand your skepticism, but we want to clarify that KardiaMobile is an FDA-cleared medical device backed by over 150 peer-reviewed clinical studies. It is a tool relied upon by millions of users and recommended by cardiologists worldwide.
While we take negative feedback seriously as a way to improve, we absolutely stand by our warranty. If any customer receives a defective unit or is unsatisfied, our team is available at support@alivecor.com or 855-338-8800 to ensure they receive a replacement or a resolution.
This picks up on my Afib so no…
This picks up on my Afib so no complaints there, however it always records that my BPM is about double what it really is, this morning it said my BPM was 149 when in reality it was just 64, this could be quite scary for some folk, I know to check my pulse manually each day, so I know exactly what it is.
June 9, 2023
Unprompted review
Reply from AliveCor
We’re glad the AFib detection is working well for you, but we completely understand how a doubled heart rate reading could be alarming. The algorithm in the KardiaMobile application calculates heart rate by not only counting heart beats, but also by looking at things including morphology to give you a best “calculated average”, it will not always be very close to the preliminary number that is shown while recording the EKG. This number may also be different from the number shown by a different product from a different company, that is also measuring beats per minute. This is because other products are only measuring the beats per minute, and are most likely not taking other factors into consideration like the morphology and other EKG data.
We appreciate you sharing your experience, and it’s great that you’re double-checking with a manual pulse.
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Please do not rely on this device for accuracy
Please do not rely on this for accurate diagnosis. I had several traces come back on it saying 'atrial fibrillation'and another trace stating 'atrial fibrillation'. I sent these off for their Cardiolgist's Report one came back saying yes to 'atrial fibrillation' and the other Report came back stating Atrial Fibrillation with rapid ventricular response'. Understandably this was all incredibly worrying and I was referred straight away to a top London cardiologist who specialises in rhythm disorders. Having had the appropriate and thorough tests done neither of these traces were actually atrial fibrillation!!! It caused us a HUGE amount of stress which could all have been avoided. Whilst I am sure this device has its uses it can also cause untold distress with inaccuracies. I am aware it states on Kardia that 'This report does not replace medical advice please seek professional assistance' etc etc which IS good advice. All I am saying is this device clearly is far from accurate all the time despite it's claims of 94% accuracy.
May 15, 2023
Unprompted review
Reply from AliveCor
We sincerely apologize for the significant stress and anxiety caused by these results. We are glad you were able to get a definitive diagnosis from your specialist, but we understand how distressing it is to receive incorrect AFib notifications from both the algorithm and a clinician.
While our devices and clinical reviews strive for high accuracy, certain heart patterns can occasionally mimic the electrical signature of AFib, leading to false positives. We take these discrepancies very seriously and use cases like yours to improve our systems.
Please email us at support@alivecor.com and mention this review along with your Trustpilot username. This will allow us to locate your information, have our senior clinical team investigate the conflicting reports, and assist you with a full refund for the clinician reviews.
Pop ups and no one page 30 sec summary
Please register my objection to pop ups and the requirement for a one page summary which requires internet.
Frequently on a boat with no internet.
Bad design, bad process
March 1, 2023
Unprompted review
Reply from AliveCor
We sincerely appreciate your feedback. We understand how frustrating it is to encounter connectivity barriers, especially when you are using the device in remote locations like on a boat.
While the Kardia app allows you to record and save EKGs locally to your device without internet, we recognize that generating summaries and clearing certain notifications currently requires a connection. We have shared your specific objections regarding pop-ups and the need for better offline reporting with our product development team to help guide future updates.
If you’d like to discuss this further or have more suggestions on how we can improve the experience for off-grid users, please contact us at support@alivecor.com or 855-338-8800.
Beware of stealth charges
The device is useful and easy to use.
However, the website does not make it clear how to use KardiaCare, for which it charges £99.99/year. Neither does it make clear that once used, it will keep on charging this fee annually, without any notice of renewal.
February 13, 2023
Unprompted review
Reply from AliveCor
We are glad to hear that you find the KardiaMobile device useful and easy to use.
Regarding KardiaCare, this is an optional subscription that provides additional heart health features such as clinician reviews, automated EKG summaries, and cloud storage. We aim for transparency with our membership plans, which are set to auto-renew annually to ensure uninterrupted service for our members.
If you would like assistance navigating these features or wish to discuss your renewal, please email us at support@alivecor.com and mention this review along with your Trustpilot username. We would be happy to help you manage your account settings or address any billing concerns.
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