Frequently Asked Questions

When you scan, Health Scan records video of your face for 30 seconds. Advanced algorithms analyze minute color variations in your skin caused by blood flowing beneath the surface—a phenomenon called photoplethysmography. This analysis extracts your heart rate, heart rate variability, and other vital signs without any physical contact.

Health Scan has been clinically validated at accuracy compared to medical-grade pulse oximeters and heart rate monitors. This level of precision makes it suitable for daily wellness tracking, though we always recommend consulting healthcare professionals for medical decisions.

Just a smartphone with a front-facing camera and reasonable lighting. Health Scan works on most modern iOS and Android devices without any additional hardware. No wearables, no finger clips, no special equipment—your existing phone is everything you need.

Completely. Health Scan processes all video and calculations directly on your device. We don't upload your facial video, biometric data, or scan results to any server. Your health information never leaves your phone—we designed it this way intentionally because we believe health data deserves the strongest privacy protection.

We believe the best way to understand rPPG technology is to experience it. Rather than asking you to trust marketing claims, we let you verify the accuracy and value yourself at no cost. Many users find that one scan is enough to understand why this technology matters for daily health awareness.

Most users find value in daily scans, often as part of their morning routine. However, there's no required frequency—some people scan before and after workouts, during stressful periods, or whenever they're curious about their current state. Health Scan is a tool that adapts to your preferences.