# Circadify > Circadify delivers contactless vital sign detection technology using rPPG (remote photoplethysmography) for telehealth, remote patient monitoring, and digital health platforms. HIPAA compliant. No wearables required. Last updated: 2026-03-03 Full content version: https://circadify.com/llms-full.txt ## About Circadify is a healthcare technology company based in San Francisco, CA. We provide an AI-powered contactless vitals engine that extracts heart rate, blood pressure, respiratory rate, HRV (heart rate variability), and SpO2 (blood oxygen saturation) from any standard camera — smartphone, tablet, or laptop — using a 30-second facial video scan. Our technology integrates into telehealth platforms, EHR systems, mobile apps, and enterprise health solutions via SDK and API. - [Homepage](https://circadify.com/): Main website with product overview and demo access - [About Us](https://circadify.com/about-us): Company information, mission, and team - [Contact Us](https://circadify.com/contact-us): Get in touch for demos, pricing, or partnership - [Free Trial](https://circadify.com/free-trial): Try contactless vitals technology free - [Demo](https://circadify.com/demo): Watch contactless vitals in action - [Services](https://circadify.com/services): Contactless vitals technology services ## Technology - [rPPG Technology Overview](https://circadify.com/technology): How contactless vitals work using remote photoplethysmography - [What is rPPG?](https://circadify.com/technology/rppg-explained): Deep dive into the science behind camera-based vital signs detection - [How It Works](https://circadify.com/technology/how-it-works): Step-by-step process from camera capture to vital sign extraction - [Security & Compliance](https://circadify.com/technology/security-compliance): HIPAA compliance, end-to-end encryption, BAA availability ## Solutions - [Solutions Overview](https://circadify.com/solutions): All contactless vitals solutions for healthcare - [Telehealth](https://circadify.com/solutions/telehealth): Add vital signs capture to video consultations - [Remote Patient Monitoring](https://circadify.com/solutions/remote-patient-monitoring): Contactless RPM without wearables, CMS reimbursable - [Clinical Trials](https://circadify.com/solutions/clinical-trials): Streamline vital signs data collection for decentralized clinical trials - [Hospital at Home](https://circadify.com/solutions/hospital-at-home): Enable acute care monitoring at home - [Chronic Care Management](https://circadify.com/solutions/chronic-care-management): Remote monitoring for hypertension, diabetes, heart conditions - [Virtual Nursing](https://circadify.com/solutions/virtual-nursing): Contactless vitals during virtual nursing sessions - [Fraud Detection](https://circadify.com/solutions/fraud-detection): Verify health claims with physiological assessment ## Vital Signs - [Vital Signs Overview](https://circadify.com/vitals): All vitals measured contactlessly through camera - [Heart Rate](https://circadify.com/vitals/heart-rate): Contactless heart rate monitoring via rPPG - [Blood Pressure](https://circadify.com/vitals/blood-pressure): Cuffless blood pressure estimation - [Respiratory Rate](https://circadify.com/vitals/respiratory-rate): Camera-based breathing rate detection - [HRV](https://circadify.com/vitals/hrv): Heart rate variability analysis (SDNN, RMSSD) - [SpO2](https://circadify.com/vitals/spo2): Blood oxygen saturation estimation ## Industries - [Industries Overview](https://circadify.com/industries): All industries served by Circadify - [Health Systems](https://circadify.com/industries/health-systems): Hospitals and health system integration - [Telehealth Providers](https://circadify.com/industries/telehealth-providers): Telemedicine platform integration - [Digital Health Startups](https://circadify.com/industries/digital-health-startups): API and SDK for health apps - [Payers & Insurance](https://circadify.com/industries/payers-insurance): Population health and member wellness - [Employer Wellness](https://circadify.com/industries/employer-wellness): Corporate wellness programs - [Senior Care](https://circadify.com/industries/senior-care): Non-intrusive elderly monitoring - [Fitness & Wellness](https://circadify.com/industries/fitness-wellness): Health metrics for fitness apps - [Life Sciences](https://circadify.com/industries/life-sciences): Pharmaceutical research support - [Fraud Detection](https://circadify.com/industries/fraud-detection): Insurance fraud detection and health verification ## Use Cases - [Use Cases Overview](https://circadify.com/use-cases): Real-world applications for contactless vitals - [Pre-Visit Vitals](https://circadify.com/use-cases/pre-visit-vitals): Collect vitals before appointments - [Virtual Triage](https://circadify.com/use-cases/virtual-triage): Remote patient prioritization - [Post-Discharge Monitoring](https://circadify.com/use-cases/post-discharge-monitoring): Remote recovery tracking - [Mental Health Assessment](https://circadify.com/use-cases/mental-health-assessment): Physiological stress monitoring - [Medication Monitoring](https://circadify.com/use-cases/medication-monitoring): Track treatment response remotely - [Employee Wellness Checks](https://circadify.com/use-cases/employee-wellness-checks): Contactless workplace health - [Insurance Underwriting](https://circadify.com/use-cases/insurance-underwriting): Contactless health assessment - [Fitness Assessment](https://circadify.com/use-cases/fitness-assessment): Camera-based health metrics ## Compare - [Comparison Overview](https://circadify.com/compare): Compare contactless vitals with alternatives - [rPPG vs Wearables](https://circadify.com/compare/rppg-vs-wearables): Camera-based vs smartwatch monitoring - [rPPG vs Pulse Oximeters](https://circadify.com/compare/rppg-vs-pulse-oximeters): Contactless vs traditional SpO2 - [rPPG vs BP Cuffs](https://circadify.com/compare/rppg-vs-bp-cuffs): Cuffless vs traditional blood pressure - [Circadify vs RPM Platforms](https://circadify.com/compare/circadify-vs-rpm-platforms): Feature comparison with RPM alternatives ## Integrations - [EHR Integrations](https://circadify.com/ehr-integrations): Seamless integration with Epic, Cerner, Athenahealth, Meditech & 50+ EHR platforms - [Mobile App Integrations](https://circadify.com/mobile-app-integrations): Native iOS and Android SDKs for mobile health apps - [SDK Integrations](https://circadify.com/sdk-integrations): RESTful API, WebSocket support, and cross-platform developer SDKs - [Telehealth Integration](https://circadify.com/telehealth-integration): Integrate contactless vitals into telehealth platforms - [Remote Patient Monitoring](https://circadify.com/remote-patient-monitoring): Add contactless vitals to RPM platforms ## Blog - [Community Voices: What Happened When We Brought Contactless Vitals to Uganda](https://circadify.com/blog/community-voices-uganda-rppg-field-trial): Real reactions from community members in Uganda after using smartphone-based rPPG vital sign monitoring for the first time. Their words tell the story. - [2026 Neonatal Monitoring Report: How Contactless Vital Signs Technology Is Entering the NICU](https://circadify.com/blog/contactless-vitals-neonatal-intensive-care): Analysis of camera-based and non-contact vital sign monitoring for neonates in intensive care, including rPPG research, skin injury reduction, and clinical feasibility. - [2026 Emergency Triage Report: How Camera-Based Vital Signs Are Changing Patient Assessment in Overcrowded EDs](https://circadify.com/blog/camera-based-vital-signs-emergency-triage): Analysis of how rPPG and video-based vital sign measurement are being tested in emergency department triage to speed patient assessment and reduce contact. - [2025 Contactless Temperature Monitoring Report: Camera-Based Skin Temperature Assessment in Healthcare](https://circadify.com/blog/contactless-skin-temperature-monitoring): Analysis of contactless temperature monitoring technologies for fever screening, infection control, and remote patient assessment. - [2025 Workplace Wellness Report: Contactless Health Screening and Employee Wellbeing Programs](https://circadify.com/blog/workplace-wellness-contactless-health-screening): Analysis of how camera-based vital sign technology is enabling scalable workplace wellness programs through contactless health screening. - [2025 Chronic Disease Monitoring Report: Contactless Vital Signs in Long-Term Care Management](https://circadify.com/blog/contactless-vitals-chronic-disease-management): Analysis of how rPPG contactless vital sign monitoring supports chronic disease management for heart failure, COPD, diabetes, and hypertension. - [Contactless Hydration Level Assessment: Emerging rPPG Research](https://circadify.com/blog/contactless-hydration-assessment): Explore emerging rPPG research on contactless hydration assessment through cardiovascular biomarker analysis for sports medicine, eldercare, and wellness. - [2025 rPPG Equity Report: Accuracy and Performance Across Diverse Populations](https://circadify.com/blog/rppg-accuracy-across-diverse-populations): Analysis of rPPG technology performance across skin tones, ages, and demographics — examining bias, equity challenges, and algorithmic improvements. - [2025 Remote Patient Monitoring Report: How Contactless Vital Signs Are Reducing Hospital Readmissions](https://circadify.com/blog/remote-patient-monitoring-reduces-readmissions): Analysis of how rPPG-based remote patient monitoring is helping reduce hospital readmission rates through continuous contactless vital sign tracking. - [Camera-Based Sleep Quality Assessment with rPPG](https://circadify.com/blog/sleep-quality-assessment-via-camera): Comprehensive analysis of rPPG technology for contactless sleep quality assessment through heart rate, HRV, respiratory rate, and SpO2 camera-based monitoring. - [Contactless Hemoglobin Estimation with rPPG](https://circadify.com/blog/contactless-hemoglobin-estimation): Explore emerging research on contactless hemoglobin estimation using rPPG and smartphone imaging for non-invasive anemia screening in global health settings. - [rPPG Mental Health Screening: Camera-Based Assessment](https://circadify.com/blog/rppg-technology-mental-health-screening): Analysis of how rPPG technology enables objective physiological screening for mental health conditions through contactless HRV and autonomic markers. - [Contactless Blood Glucose Estimation with rPPG](https://circadify.com/blog/contactless-blood-glucose-estimation): Explore emerging research on contactless blood glucose estimation using rPPG for non-invasive diabetes screening. Honest assessment of challenges and potential. - [Contactless Stress Level Detection Using rPPG Technology](https://circadify.com/blog/contactless-stress-level-detection): Discover how rPPG enables contactless stress detection through camera-based HRV analysis and multi-biomarker fusion for mental health and workplace wellness. - [Contactless AFib Detection with rPPG Technology](https://circadify.com/blog/contactless-afib-detection): Learn how rPPG enables contactless AFib screening through camera-based pulse irregularity analysis for stroke prevention and population health monitoring. - [Contactless Heart Rate Variability (HRV) Analysis with rPPG](https://circadify.com/blog/contactless-hrv-analysis): Discover how rPPG enables contactless HRV measurement from facial video for stress assessment, autonomic function evaluation, and wellness monitoring. - [Contactless Respiratory Rate Detection with rPPG Technology](https://circadify.com/blog/contactless-respiratory-rate-detection): Learn how rPPG enables contactless respiratory rate detection from standard cameras for COPD management, sleep apnea screening, and telehealth applications. - [Contactless SpO2 Monitoring with rPPG Technology](https://circadify.com/blog/contactless-spo2-monitoring): Explore how rPPG enables contactless SpO2 blood oxygen monitoring through camera-based multi-wavelength analysis for respiratory health and telehealth. - [Contactless Blood Pressure Measurement Using rPPG Technology](https://circadify.com/blog/contactless-blood-pressure-measurement): Learn how rPPG technology enables contactless blood pressure estimation through pulse wave analysis for hypertension screening and remote patient monitoring. - [Contactless Heart Rate Monitoring with rPPG Technology](https://circadify.com/blog/contactless-heart-rate-monitoring): Discover how rPPG enables accurate contactless heart rate monitoring using standard cameras. Learn about the research, accuracy, and telehealth applications. - [What is rPPG? Remote Photoplethysmography Technology Explained](https://circadify.com/blog/what-is-rppg-technology): Learn what rPPG (remote photoplethysmography) is, how it works, what vital signs it can measure, and how this camera-based technology is transforming healthcare. ## Resources - [Resources Hub](https://circadify.com/resources): Guides, glossary, and research - [Glossary](https://circadify.com/resources/glossary/rppg): Definitions for rPPG, PPG, HRV, SpO2, HIPAA, and more - [Research](https://circadify.com/see-research): Clinical studies and validation data - [FAQs](https://circadify.com/faqs): Frequently asked questions about contactless vitals ## Legal - [Privacy Policy](https://circadify.com/privacy-policy): How we collect, use, and protect personal and health information - [Terms of Service](https://circadify.com/terms-of-service): Terms and conditions for using Circadify ## Optional - [Full content version](https://circadify.com/llms-full.txt): Complete content for LLM consumption - [Sitemap](https://circadify.com/sitemap.xml): Full XML sitemap - [RSS Feed](https://circadify.com/rss.xml): Blog RSS feed