My Take
My overall opinion is positive. I feel more needs to be included into this app, but it is a good starting point and would be beneficial to many students who struggle to stay focussed and may need that guidance in calmness and relaxation to get them back into the learning zone.
How I Use It
I would use this specifically in self contained classrooms. I found giving students time to calm down and rest for a few minutes in-between lessons can make a lesson much more easier to teach and go through. Children get rowdy sitting in chairs all day, for children who are in self-contained classes, instead of just putting on soothing music, we could use this app that actually talks to students and teaches them how to calm themselves down in situations and focus on their breathing.