Eureka! I found it!

This app appeared to be exactly what I was looking for. Ez to read entry-the editing of a saved record is more difficult. Whats up with the Help area. First time thru the video instructions worked well. Not so to refresh my memory on subsequent attempts. First screen gives instructions, then locks up, if skip is selected, returns to home screen.
App does not always save the entries. Thus the three star rating.

Tiagotoo about Blood Pressure App SmartBP, v2.2