Check your heart in 15 seconds
You only need your smartphone
The next generation of heart diagnostic is already in your pocket.
No additional hardware required.
Used by everyone in the clinical pathway
Patients
Family
Physicians
Healthcare Professionals
Heart Rate
Background noise
Sound quality
Heart Rythm
15 sec recording
Respiratory Rate
Share Recording
Every Smartphone
Be part of the future of mobile heart health
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Features
Your heart, understood in 15 seconds.
Theodor brings clinical-grade heart & lung screening to any smartphone – no extra hardware.
Record
Hold your smartphone to your chest for 15 seconds. No stethoscope, no wearable, no cables.
AI analysis
Our AI evaluates heart & lung sounds – rhythm, heart rate, respiratory rate and acoustic abnormalities.
AI
Understand
A clear, plain-language result – no jargon. You'll know whether things look normal or whether to seek medical advice.
Share
Send your recording and result to your doctor in one tap – as a reviewable report.
Track over time
Every measurement is stored, so you and your physician can spot changes over time.
For everyone
For every point in the care pathway
How it works
What the AI detects for you
Theodor learns from hundreds of thousands of heart and lung recordings, surfacing acoustic patterns the human ear can't reliably detect.
Common questions
Frequently asked questions
