I ran the beta on an iPhone 7 running iOS 12.1 beta. I really liked the app overall and I can honestly say that I learned something! One comment I had was that it would be nice to have some sort of menu screen right as you open the app, rather then having the lessons button right in front of you. The rewards were nice, and I really like the weekly quotes, but I really think that they should have there own tab separate from the inbox tab.