Underpriced!
What a great app! This is every bit as good as a device that I paid $200 for. However, not only is it significantly less expensive, its every bit as accurate (honestly I was skeptical, but verified against an oximeter), and its too convenient not to use anytime Ive got a few minutes. If you dont already know the benefits of heart coherence breathing techniques & training, I highly recommend doing some reading on the subject. Then I challenge you to find a better, more convenient means of doing it.
theamorphicone about
HeartRate+ Coherence