Heart feels off?

Get your ECG read by certified experts within minutes on the Qaly app.

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180,000+ read ECGs so far!
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QALY - Human experts interpet your ECG (Apple Watch, Samsung, Kardia, Fitbit, and more)
100,000+ heart heroes signed-up with QALY
Life changing and anxiety reducing
By jjc013
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This app is a God send. It calms my anxiety and literally helped me sleep the night after my first review. It is reassuring and QUICK. I highly recommend it. THANK YOU!

MAR 18 2020
QALY User Review - ECG Reviews within minutes
Selena Bluntzer
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I am impressed! I received a thorough review of 3 ECGs and the technician was so helpful and friendly in their reporting. I've felt more "heard" by this app's technician than in all the time I spent with other doctors. I will be following up with my doctor, though, and I greatly appreciate this app!

MAR 13 2022
Best peace of mind for your ❤️
By MSM713
Apple Icon - QALY App Store Review

QALY gave me back some control letting me know what my weird beats were, stating if they were within a normal range and giving me some much needed information about my heart. Peace of mind obtained.

APR 10 2022
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QALY app, palpitations, irregular heartbeats, review ecg in minutes
Get Peace of mind

Are those irregular heartbeats or palpitations?

On Qaly, cardiographic technicians monitor your ECGs for heart palpitations and arrhythmias like SVT, AFib, PVC, PAC, & more. Take an ECG, and get your review within minutes.

Unlock Insights

How do I interpret my smartwatch or Kardia ECG?

Learn about short or prolonged PR, QRS, and QTc intervals. Add notes on each ECG for even more personalized interpretations from Qaly technicians.

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Capture episodes

How is my heart health changing?

Take a watch ECG immediately when you're experiencing symptoms, and capture episodes. Get deep insights into changes in your heart health over time.

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Try free, cancel any time

With the modern availability of at-home devices that can measure ECGs, it is now challenging for cardiologists to keep up with all of these readings. On Qaly, trained ECG technicians read every ECG you submit.  If you want to learn what your ECG may be telling you, this is the place to start.

Dr. Marco Perez

Stanford Associate Professor of Medicine
Stanford Clinical Cardiac Electrophysiologist

Qaly Co-Founder

Macro Perez - Co-founder of ReadMyECG

Frequently Asked Questions

What’s included in the Qaly app?

Unlimited ECG interpretations by human experts within minutes.

• Ectopic heartbeats displayed directly on your ECGs (PAC and PVC palpitations).
• Expert-verified PR, QRS, and QTc intervals on every at-home ECG, including Apple Watch, Kardia, Samsung, Fitbit, and Withings.
• Qaly interpretation reports, easily shareable with family and doctors.

Who are the experts reviewing ECGs on Qaly?

Certified cardiographic technicians.

They are professionals skilled in understanding heart rhythms. They excel at identifying irregularities like SVT, AFib, PVCs, PACs, and more. All our technicians, having successfully cleared the CCT exam by Cardiovascular Credentialing International, showcase enhanced competence. Now, they're attentively overseeing your at-home ECGs 24/7 on Qaly.

What rhythms does the Qaly app look for?

Qaly technicians currently monitor for 33 different arrhythmias:

• Complete Heart Block
• Ventricular Tachycardia (sustained)
• Second Degree AV block Type 2
• Sinus Pause >3 seconds
• Ventricular Tachycardia (non-sustained)
• Sinus Pause <3 seconds
• Atrial Fibrillation
• Atrial Flutter
• Supraventricular Tachycardia (sustained)
• 2:1 AV Block
• Accelerated Idioventricular Rhythm
• Supraventricular Tachycardia (non-sustained)
• Wenckebach
• Wolff-Parkinson-White Syndrome
• Ventricular Bigeminy
• Ventricular Trigeminy
• Atrial Bigeminy
• Atrial Trigeminy
• Junctional Rhythm
• Premature Ventricular Contraction (couplet)
• Premature Atrial Contraction (couplet)
• Premature Ventricular Contraction (multiple)
• Premature Atrial Contraction (multiple)
• Premature Ventricular Contraction (single)
• Premature Junctional Contraction
• Ectopic Atrial Rhythm
• Premature Atrial Contraction (single)
• First Degree AV Block
• Sinus Tachycardia
• Sinus Bradycardia
• Sinus Arrhythmia
• Sinus Rhythm
• Paced Rhythm
• Low Voltage

How is Qaly different from other apps?

Qaly is the only app on the App Store and Play Store where human experts interpret each and every ECG you submit, within minutes.

With Qaly, discover possible new cardiac arrhythmias and palpitations, track known arrhythmias and irregular heartbeats, and unlock deeper insights about your heart health through human technician monitoring.

Same-day delivery on unlimited ECG interpretations means getting continual information and peace of mind before the next available doctor’s appointment.

Join 100,000+ heart heroes signed-up with Qaly

Send ECGs from Apple Watch, Samsung Galaxy Watch, Fitbit Sense, Fitbit Charge 5, Withings Move ECG, Withings Scanwatch, Kardia, Wellue, or any other ECG device ❤️


Amazing comfort for any one struggling with heart issues.


Best peace of mind for your ❤


Extremely grateful for the person who reviewed my ECG.


To the pros reading my ECGs, thank you!


Life changing!


I looked for an app that uses real technicians, and not an algorithm to read my ECGs. Luckily, Qaly was there at the right time for me.