This app was mentioned in 1 comment, with an average of 1.00 upvote
It's just called E-cig Diary Pro (I bought the pro version for some reason but there is a free version).
You can put all your info in, then put widgets on your home screen(s) that will display certain info.
I think it was originally developed in Italian...it's translated to English pretty well, but there are some rough spots :)
Here's a link: https://play.google.com/store/apps/details?id=it.merkCoolApp.esigdiary