Optimal HRV: Biofeedback

Optimal, LLC

In-app purchases

About this app

Are you feeling stressed, burned out, or just not yourself? Optimal HRV is the guided biofeedback app that teaches your body to calm down — for real. Backed by a Harvard Medical School mindfulness expert and trusted by athletes worldwide.

Optimal HRV pairs real HRV data with live biofeedback, so every session trains your nervous system to handle stress better — not just tells you that you're stressed.

Why HRV and Biofeedback Training Work

Your Heart Rate Variability (HRV) is a window into how well your body handles stress, anxiety, and recovery — and biofeedback is how you train it to improve. Together, they show you what's happening inside your body, then guide you to change it in real time.

With Optimal HRV, you can:
•See how stressed — or relaxed — your body really is, using real HRV data.
•Learn what actually helps you recover, from sleep to workouts to busy workdays.
•Use live biofeedback to train your body to relax faster, right as it's happening.
•Discover your own personal "perfect breathing rhythm" through guided sessions.

Features You'll Actually Use
•Daily Check-Ins — take a quick reading each morning, or anytime you want to see how you're doing.
•Your Perfect Breathing Rhythm — a simple test finds the exact breathing pace that works best for you.
•Live Feedback While You Train — a simple on-screen guide shows you when you're doing it just right.
•Calming Mindfulness Sessions — guided practices created with a Harvard Medical School mindfulness expert, covering stress, anxiety, pain management, athletic performance, and more, with calming narrations in your choice of voice.
•Easy-to-Read Progress — see your trends over days, weeks, and months, no data expertise needed.
•Video Tutorials — learn HRV concepts and techniques at your own pace.
•Make It Yours — adjust sounds, pacing, and reminders so training fits your life.
•Available in 17+ Languages — use Optimal HRV in your native language.
•Device Testing — quickly verify if your heart rate monitor works with the app.
•Great for Teams Too — employers and coaches can track group wellness together (Dashboard Acsess Needed).

Why Optimal HRV Works with External Sensors (Not Apple Watch)

We choose precision over convenience.

Apple Watch is great for daily wellness, but Optimal HRV is built for serious HRV training. That's why we connect directly to HRV Monitor via Bluetooth — they deliver millisecond-accurate R‑R intervals that wrist sensors can't match.

What that means for you:
•More accurate data – better insights, better decisions.
•Real-time streaming – no gaps, no guesswork.
•Reliable results – trusted by athletes and coaches worldwide.

Love Optimal HRV? Leave a review and help others find their calm. Your feedback helps us improve and reaches more people who need stress relief.

Try it free for 30 days and feel the difference for yourself.

Download now and start training your nervous system today.

Ratings and reviews

I heard about this from one of my friend and just tried it and after using it for couple of minutes i can say it's working awesome the optimal zone feature is really good it helps you breathe better and get you in a calm situation... highly recommend it.

I have been using this app lately for taking HRV readings and I love it's simple design and it's scientific accuracy is on another level they are not following the junk science which everyone is using in their apps, highly recommend to everyone

This is a great app with very old fashioned design but simple and easy to use, love it all.

What’s new

Faster, smoother, and more reliable!

- Redesigned biofeedback history, post-session results, and RF assessment screens
- Improved app speed and load times
- Smoother audio and vibration playback
- Heart rate chart now shows a rolling 1-minute view
- Cancel a session after 1 min and keep your progress—no more lost data
- Reliable data sync even if your internet drops
- Connect devices even if already paired in your phone's Bluetooth menu
- Bluetooth, navigation, and other bug fixes