Finger Vitals

Finger Vital Sign turns your phone's camera into a simple vitals scanner — no wearable, no extra hardware required.

Just cover your rear camera and flash with a fingertip. Using photoplethysmography (PPG) — the same principle behind clip-on pulse oximeters — the app detects subtle light-absorption changes from your pulse and converts them into meaningful vitals.

KEY FEATURES

- Live PPG Scan — a ~60 second capture with a live waveform, real-time signal-quality feedback, and motion-artifact detection.

- Comprehensive Vitals — heart rate, heart rate variability (SDNN, RMSSD, pNN50), respiration rate, a gamified wellness score, an experimental stress index and LF/HF ratio, and pulse-wave shape detection.

- Home Dashboard — a live finger-preview, one-tap "Measure Now," and a weekly heart-rate trend card.

- History & Trends — every past scan, filterable by time range (Today, 7/30 days, 3/6 months, 1 year), with per-vital averaged trend charts and drill-down into individual scans.

- AI Insight — get a plain-language explanation of your completed scan.

- Privacy-first — all core processing and storage happens on your device. Your scan history never leaves your phone unless you choose to use the optional AI Insight feature.

IMPORTANT
Finger Vital Sign is not a medical device. It provides estimates only and is not intended for diagnosis or medical decision-making. It does not measure blood pressure, blood glucose, or blood oxygen (SpO2). Always consult a qualified healthcare professional for medical advice.

Requires a physical Android device with a rear camera and flash.