100% On-Device ECG Privacy
Your ECG data never leaves your device. HeartLab processes everything locally — no cloud uploads, no third-party access, complete privacy.
Your Heart Data Stays on Your Device
In an age where health apps routinely upload sensitive medical data to cloud servers, HeartLab takes a fundamentally different approach. Every ECG analysis, arrhythmia detection, and HRV calculation happens entirely on your iPhone. Your ECG recordings are never transmitted to external servers, never processed in the cloud, and never accessible to third parties. This is not just a feature — it's a core architectural decision that protects your most sensitive health information.
Why On-Device Processing Matters
Many ECG apps send your recordings to cloud servers for analysis. Qaly uploads ECGs to human reviewers. ECG+ uses cloud-based GPT for AI analysis. These approaches create privacy risks: data breaches, unauthorized access, and loss of control over your medical information. HeartLab's on-device processing means your ECG data is protected by your iPhone's hardware encryption, your Face ID or passcode, Apple's iOS security model, and your own physical control of the device. This approach is fully compliant with GDPR (EU) and HIPAA best practices.
Privacy Without Compromise
Some might wonder if on-device processing means weaker analysis. Not with HeartLab. Our optimized algorithms deliver clinical-grade ECG analysis, comprehensive HRV metrics, arrhythmia detection, and AI-powered explanations — all running locally on your iPhone's powerful processor. You get the same depth of analysis as cloud-based alternatives, with the added benefit of knowing your cardiac data is truly private.
FAQ
Does HeartLab upload my ECG data?
Never. All ECG analysis happens on your iPhone. HeartLab does not have servers that receive or store your ECG recordings. Your data stays under your control.
Is HeartLab GDPR compliant?
Yes. Since HeartLab processes all data on-device and does not collect personal health data on external servers, it inherently meets GDPR data minimization and privacy-by-design requirements.
How does the AI assistant work without cloud?
HeartLab's AI explanations are generated using on-device models optimized for mobile processors. No ECG data is sent to external AI services.
Can I share my ECG data if I choose to?
Yes. HeartLab can generate PDF reports that you can choose to share with your doctor via email, AirDrop, or messaging. You control when and with whom your data is shared.
Get Advanced ECG Analysis on Your Wrist
HeartLab delivers clinical-grade ECG analysis directly from your Apple Watch — arrhythmia detection, HRV analysis, and professional reports.
