Short version: Heart feels off? Get your ECGs read by certified experts within minutes for AFib, PVC, SVT, WPW, and more. 500,000 ECGs analyzed Longer version: Heart feels off? Inconclusive ECG? Get your ECGs read by certified experts within minutes, for peace of mind. 500,000 ECGs read so far. On the Qaly app, get your ECGs reviewed by certified cardiographic technicians, trained to read ECGs for 30 palpitations and abnormal heart rhythms like Afib, SVT, PVC, PAC, short or prolonged PR interval, short or long QT interval, and more. The Qaly app is built by Stanford cardiologists and engineers, including Dr. Marco Perez, a Stanford Associate Professor of Medicine and Stanford Cardiac Electrophysiologist. Join 200K heart heroes signed-up with the Qaly app today, the only app where human experts analyze ECGs from your Apple Watch, Fitbit Watch, Withings Watch, KardiaMobile, or any other device within minutes, day or night.