I am along time user and have been very happy with the app. Recently I had an IPad failure and my iTunes backup was not very successful. I needed to reinstall Happy Scale but when I did my Dropbox synchronization it left me with no historical data. Russ the program developer went out of his way to find the cause and help me get my data back successfully.
RayH14 about Happy Scale: Simple Weight Loss Tracker with Daily Moving Average Trend Line, v4.5.1