CPR and AED Training That Keeps You Ready to Respond
Most people who perform CPR do it on someone they know: a parent, a partner, a friend, a coworker. Relay Response helps you learn CPR on the phone you already carry, practice with real-time feedback on every compression, and prove you can do it when it matters.
The technology partner behind the Heart Rhythm Society's national CPR and AED readiness initiatives.
Our Mission:
A ready Responder in every room
Join thousands of people becoming Response READY!
When someone collapses from sudden cardiac arrest, what happens in the next few minutes matters the most. More than 350,000 cardiac arrests happen outside a hospital in the United States every year, and only about 42% of those people receive bystander CPR before help arrives. When they do, their chance of surviving roughly doubles.
The problem is not that people do not care. It is that the skills learned in a CPR class fade within months, and confidence fades with it. Relay Response exists to eliminate skill decay: to make CPR readiness a skill people keep, not a card they file away.
What Relay Response Is
Relay Response is a CPR platform that measures what you can actually do, not just what you remember. It turns your smart device into a coach: it monitors your compressions through the phone's built-in motion sensors and guides you, as you go, whether you are pressing at the required rate and depth. Train from the comfort of your home.
Instead of one long class every two years, you get short lessons and quick practice sessions you can come back to anytime. Every session is scored, so your readiness is something you can see, not something you assume.
Heart Rhythm Society CPR Training Powered by Relay Response
What is HRS?
The Heart Rhythm Society is a leader in the international society for cardiac electrophysiology. Founded in 1979, this community brings together more than 9,000 clinicians, scientists, and health professionals from across 90+ countries.
HRS's CPR task force has approved the Relay Response CPR training program according to ILCOR guidelines.
How It Works
Download
Get Relay Response from the Apple App Store or Google Play.
Micro Learning
Watch short video lessons at your own pace, covering adult CPR and how to use an AED.
Practice
The app coaches your compressions in real time, measuring the rate and depth using only your phone or smart watch.
Get your CPR & AED Card.
Pass a measured skills check and earn a card that shows you can perform the skill, not just that you attended a class.
Stay ready
Quick CPR refresher sessions, challenges and practice drills keep your skills sharp between trainings.
Who It Is For
Individuals and families.
Learn at home on your own schedule and be ready for the people closest to you.
Download the appCPR trainers and instructors.
Use the trainer dashboard to run sessions of any size, see every trainee's performance live, and give your students app access to keep practicing after class.
Explore trainer toolsOrganizations, workplaces and schools.
Run group CPR training at any scale with rosters, completion tracking and exportable reports, then keep your people practicing long after the session ends.
Train your teamCommunity sponsors.
Fund CPR and AED training for schools, venues and community groups, and receive an annual impact report showing who you reached and how their confidence changed.
Talk to our teamYour Path to
Training and Certification
For yourself:
Download the app, finish the lessons, practice chest compressions and using a virtual AED until your scores are consistent, then pass the skills check to earn your CPR & AED card.
For a group:
Your organization or trainer sets up a session, everyone trains together with live feedback, and each learner keeps the app to practice afterward. Participants leave with a Heart Rhythm Society CPR & AED card.
Results From Real Community Trainings
At a Heart Rhythm Society CPR and AED training in Chicago in April 2026, nearly 150 students trained across eight sessions. The share of participants who called themselves extremely confident rose from 29% to 76%, and 93% said they plan to keep using the app over the next year.
Extremely confident
At an iHOPE-KIDS community event in June 2026, 54 attendees trained. High confidence performing CPR rose from 15% to 86%, and the share who could correctly identify the proper compression rate went from 65% to 100%.
High confidence performing CPR
Correctly identified compression rate
“Love it, exceeded my expectations and will recommend others for future events.” - iHOPE-KIDS event attendee, June 2026See the evidence
Grounded in Science, Built by Clinicians
Our curriculum is aligned to the ILCOR 2025 consensus science and reviewed through the Heart Rhythm Society CPR/AED Task Force. The Relay Response app is protected by multiple U.S. and international patents, and it was designed by a critical care physician.
Our Supporters
Relay Response is supported by the Heart Rhythm Society, the NIH National Heart, Lung, and Blood Institute, NYSTAR, LifeSci NYC, Vanderbilt University, NYU Langone Health, Columbia University and Leslie eLab.
Frequently Asked Questions
Relay Response is a CPR and AED training app. You learn through short video lessons, practice chest compressions while your phone measures your rate and depth in real time, and earn a Verified Responder card once you pass a measured skills check. It was founded by Dr. Beno Oppenheimer, a critical care physician, to help more people step in during a cardiac emergency.
Be the Person Who Knows What to Do
It takes a few minutes to start and a few minutes a week to stay ready. Download the app today, or talk to our team about bringing CPR and AED training to your organization or community.
Please note: Relay Response apps are currently approved for training use only and are pending FDA 510(k) clearance. Relay Response is a training tool and is not a substitute for emergency services. In an emergency, call 911.