Excellent
I never take the time to review an app but I had to for this one For a free app it is great. Huge shout out to the creator for making this free. Very simple to use. Does exactly what I needed which was alert me if I enter/exit my desire HR zone. I would like some of the views from the read only mode into the workout mode as I like the very minimal view of some of those screens, but that would just be a cherry on top. Keep up the great work