Just saved me $200-THE BEST APP

Im a retired doc with mildly elevated blood pressure. I have been using a stand alone similar device ($200+) which is quite effective in reducing stress and bp. But this app is equally effective, free, gives better data and always with me.
Im embarassed to say how many apps I have, but lets just say this is #1 out of 225!
The big caveat is you do have to be comfortable with diaphragmatic or belly breathing.
Id just like to see a timer on the app, although each segment seems to be about 6 minutes.
And I like the humor.
GREAT JOB

Montecitoharv about BellyBio Interactive Breathing