Huh? – Entrain Review

I am computer literate and comfortable with numerous apps. Not this one! I would like, for example, how to help to prevent jet lag on a forthcoming trip from New York to Paris, but can't figure out how to even enter the information. I don't understand how one can reasonably use the information that you input. There are no instructions and the app is extremely confusing. So far it is absolutely useless and a probable candidate for the trashcan.
Review by Drbobgold on Entrain.